Directed by Johannes Roberts, 47 Meters Down (2017) stars Mandy Moore, Claire Holt and Matthew Modine. The film follows two sisters on vacation in Mexico who become trapped in a shark cage at the bottom of the ocean after a diving excursion goes terribly wrong. Combining shark attacks with claustrophobic suspense, the story focuses on survival under extreme conditions.

Från IMDB:
Two sisters vacationing in Mexico are trapped in a shark cage at the bottom of the ocean. With less than an hour of oxygen left and great white sharks circling nearby, they must fight to survive.