Sylvester Stallone, wife and daughters attend the "Guardians of the Galaxy Vol. 2" premiere in Los Angeles

Cast member Sylvester Stallone and his daughters Sistine Stallone, Scarlett Stallone, wife Jennifer Flavin and Sophia Stallone (L-R) attend the premiere of the sci-fi motion picture "Guardians of the Galaxy Vol. 2" at the Dolby Theatre in the Hollywood section of Los Angeles on April 19, 2017. Storyline: Set to the backdrop of Awesome Mixtape #2, 'Guardians' continues the team's adventures as they unravel the mystery of Peter Quill's true parentage. Photo by Jim Ruymen/UPI