He is one of the biggest stars on the planet right now, and he is the star of the new Jurassic World! You would think he might be used to seeing dinosaurs. Chris Pratt got the scare of his life by the same guy who did the spider dog prank! You know those realistic-looking dinosaur costumes? Well, he got 2 of them and had them come around the corner when Chris was walking through! His reaction was priceless!