'Avengers: Age of Ultron' premiere in Los Angeles - Slideshow

Actors Mark Ruffalo , left, and Chris Evans arrive for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actress Scarlett Johansson arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actress Scarlett Johansson arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI

Robert Downey Jr., left, and Susan Downey arrive for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actor Chris Evans arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Cast member Chris Evans arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI

Actor Chris Hemsworth arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actor Chris Hemsworth, left, and Elsa Pataky arrive for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI

Cast member Paul Bettany arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI

for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actress Jaimie Alexander arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actor Clark Gregg, left, and actress Jennifer Grey arrive for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actress Elizabeth Olsen arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actress Elizabeth Olsen arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI

Actor Michael Rooker arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actor Clark Gregg, left, and actress Jennifer Grey arrive for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Ming-Na Wen, left, and Jeremy Renner arrive on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI

Ming-Na Wen arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Ming-Na Wen arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI

Actress Ryoko Yonekura arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actor Don Cheadle, left, and Bridgid Coulture arrive for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Executive producer/Creator Stan Lee arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Claudia Kim arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Elizabeth Henstridge arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Linda Cardellini arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Jake Short arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actor James Spader arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actors Leslie Stefanson, left, and James Spader arrive for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Kelli Berglund arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Chloe Bennet arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Writer and Director Joss Whedon arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Chadwick Boseman arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actress Ryoko Yonekura arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Paul Bettany arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Cobie Smulders arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actors Mark Ruffalo , left, and Chris Evans arrive for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI

Actor Jeremy Renner arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actor Paul Rudd arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actor Samuel L. Jackson, right, and LaTanya Richardson arrive for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actor Michael Rooker arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actress Ricki Noel Lander arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actress Haley Ramm arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Chris Hardwick, left, and Lydia Hearst arrive for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Actress Lydia Hearst arrives on the red carpet for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

Director Sam Taylor-Johnson, left, and actor Aaron Taylor-Johnson arrive for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

TV Personality Nancy O'Dell arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

TV personality Thea Andrews arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI | License Photo

TV personality Thea Andrews arrives for the premiere of the motion picture sci-fi thriller "Avengers: Age of Ultron" at the Dolby Theatre in the Hollywood section of Los Angeles on April 13, 2015. Storyline: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and it is up to the Avengers to stop the villainous Ultron from enacting his terrible plans. Photo by Jim Ruymen/UPI