LOS ANGELES, April 6 (UPI) -- Scarlett Johansson stars in a final Avengers: Age of Ultron trailer.
Robert Downey, Jr., also returns as Iron Man, with Chris Hemsworth as Thor, Mark Ruffalo as Hulk and Jeremy Renner as Hawkeye. Newcomers Elizabeth Olsen and Aaron Taylor-Johnson appear as Scarlet Witch and Quicksilver.
Avengers: Age of Ultron is directed by Joss Whedon, and opens in theaters May 1. Johansson last starred in Luc Besson thriller Lucy, and is scheduled for new Coen brothers movie Hail, Caesar! and a live-action adaptation of Ghost in the Shell.