'The Devil’s Mouth' premiered globally on Prime Video on July 29. Directed by Jeff Wadlow and starring Kathryn Newton, Lana Condor, Nico Hiraga, and Gavin Casalegno, the shark survival thriller follows five college friends vacationing in Thailand who become trapped in a remote underwater cave system with a deadly bull shark. (via @Variety) #most #watched #movies #prime #video