Hollywood's favorite funny guy—and intergalactic superhero—is ready for action.

Behind the scenes at his cover shoot for the May 2017 issue of Men's Fitness, Chris Pratt—star of the upcoming Guardians of the Galaxy Vol. 2 and his own Instagram Web series #WhatsMySnack?—showed off his impressive trampoline skills, got goofy with our crew, and joked about how he's "changed" since becoming a bona-fide celebrity.

Pick up the new May 2017 issue of Men's Fitness on newsstands Monday, April 24, or download the digital edition right here.