On Monday, July 21, "Jimmy Kimmel Live" had the five leads of the new Marvel film, "Guardians of the Galaxy" on the show. Chris Pratt (Peter Quill/Star-Lord), Bradley Cooper (Rocket), Zoe Saldana (Gamora), Vin Diesel (Groot), and Dave Bautista (Drax the Destroyer) were present to promote the film, which comes out on August 1.
Before Jimmy brought out his guests to be interviewed, his sidekick, Guillermo Rodriguez, sat behind each actor in a segment he often does called "Back-to-Back". He holds a mirror up while asking celebrities questions and offers them tequila shots. He wound up gently swaying with Bradley Cooper. Guillermo called the TV show that Chris Pratt ("Parks and Recreation") is on "Park and Decoration". Rodriguez expressed his love for the movie, "Grease", to Dave Bautista and Zoe Saldana. Saldana and Guillermo wound up singing "You're the One that I Want" together. Vin Diesel politely declined a tequila shot.
Kimmel interviewed the cast after the first commercial. He found out that Bradley Cooper and Vin Diesel just met each other because their roles in the film were voice-overs of a CGI raccoon and tree. Jimmy called Cooper out when he asked the actor whether it was easier to just perform a voice in a movie and Bradley said that it involved "different challenges". Jimmy then teased Diesel about his only line, "I am Groot", by inquiring if his whole role in the movie took longer than eight minutes of his time. Pratt sculptured his body from the flabby character on the sitcom to a man built like a superhero, so the Kimmel jokingly asked him if his regimen for getting in shape was vomiting and zumba. Chris actually came right back at him by explaining it was a Shake Weight.
After the interview, Kimmel introduced a 5-year-old Marvel comics expert named Mia Grace to challenge each of the actors on the knowledge of their characters in "Guardians of the Galaxy". She beat the cast 15-0. Jimmy gave Mia a bunch of action figures for winning the trivia challenge. His whole studio audience was invited to the premiere screening of the film next door to his studio at the El Capitan Theatre.