Watch the terrifying, dinosaur-filled chaos of the new Jurassic World trailer

At the beginning of the new Jurassic World trailer, Velociraptor trainer Chris Pratt explains the trick to keeping a dinosaur happy. "It's not about control," he says. "It's a relationship based on respect."

Of course, this wouldn't be a Jurassic Park movie if something didn't go horribly wrong. In the new trailer for the upcoming blockbuster, the theme park descends into chaos as the dinosaurs go haywire on the guests:

This new trailer also offers our first real glimpse of the Indominus Rex, a massive, genetically-engineered carnivore that's much more intelligent than your average dinosaur. Based on this terrifying trailer, it's clear that the Indominus Rex won't go down so easily. (Fortunately, Chris Pratt has his raptor buddies to offer some help.)

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Jurassic World hits theaters on June 12.