47 Meters Down works on the old idea of great white sharks scaring a bunch of people (two sisters, in this case) but there's a bit of novelty (it takes place on an ocean bed) that makes the watch an enjoyable ride. While the dialogues - which seemed like they were just being spoken to help the audience understand the situation of the girls better - seemed inauthentic, everything else is pretty good here. A cool late-night watch with the family. TN.
