Chris Pratt got the fright of his life at the premiere of Jurassic World in Berlin when Poland-based pranksters SA Wardega decided to prank him behind the scenes.

Hidden cameras were set up as the pranksters hid in very convincing dinosaur costumes, waiting for the unsuspecting Pratt and his entourage to walk down the hall.

As soon as Pratt walks through the doorway the ‘dinosaurs’ jump out, making him literally jump out of his skin.

As soon as he realises it’s a prank, Pratt asks his entourage “Did you know about this?” He then points to the dinosaurs and says “Who are you?”

You’d think he’d be used to seeing and working with dinosaurs by now!

Check out the hilarious video above!