Someone let the dinosaur out of its cage a little earlier than expected. Ahead of the planned screening on Thanksgiving, Universal Pictures has released the first trailer for Jurassic World, featuring a gorgeous look at the SeaWorld-like attractions Chris Pratt, Bryce Dallas Howard, and others will have to contend with in the film. The two-minute-40-second glimpse also shows off the horrifying—and awesome-—evolution of what fictional dinosaur cloning can create. Jurassic World will open its park doors on June 12, 2015.