Director Gareth Edwards and screenwriter David Koepp give EW the inside scoop on creating these prehistoric monsters.

And yet box office is a problem the Jurassic movies have never had, whether the initial Parks or later Worlds. After Spielberg’s original, the follow-ups have often been aggressively dull, while still drawing huge crowds.

Adding to the fascinating lore of Jurassic Park, which featured genetically engineered dinosaurs, the new Jurassic World Rebirth introduces hybrid mutant monsters like the magnanimous Distortus Rex. Of course,