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

After several installments focused on silly human stories, the latest gives due respect to the creatures that made the whole franchise possible.

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.