VIDEO : Robert Downey Jr. Welcomes Chris Pratt Into the Marvel Universe

Chris Pratt plays raptor whisperer extraordinaire in the summer blockbuster Jurassic World, which prompted the meme of him crouching with arms raised in a raptor-taming position.
In a photo tweeted out by Robert Downey Jr., however, Chris is dealing with far more volatile and irrational creatures?egotistical superheroes.
The petulant Thor and Iron Man are about to spar in the iconic scene from the first installment of the Avengers series, but in this crossover version Pratt has everything under control.