‘The Devil’s Mouth’ Director Breaks Down His Bloody, One-Location Shark Movie, Those ‘Demanding’ Stunts and Why Kathryn Newton and Lana Condor Wanted to Switch Roles

When “The Devil’s Mouth” director Jeff Wadlow met the cast of his bloody shark movie, he made one thing clear. “‘Listen, this is going to be the most physically demanding job you’ve ever had. Not just because of the stunt work and all the underwater work, but the fact that when you have a simple…