Jimmy Kimmel welcomes Chris Pratt, Zoe Saldana, Dave Bautista, Vin Diesel and Bradley Cooper to a special “Guardians of the Galaxy” episode of “Jimmy Kimmel Live” on Monday, July 21 the same evening as the film’s worldwide premiere. The stars of the highly anticipated new film will talk about the project and debut exclusive content. Kimmel will also test the Guardians’ Marvel knowledge as each actor goes head-to-head in a trivia contest against Mia Grace, a 5-year-old superhero expert from Albany, New York.