Rare is the shark movie that actually tries, and for that, 47 Meters Down: Uncaged deserves ample credit. The shark effect quality varies wildly, but when it's good, it's really good (shame one of the not good times was the first time you see one). About as much originality as you can get out of this genre, but even with all that said, Uncaged still can't manage to cross that threshold into "good". It fails to suspend disbelief, doesn't have characters you can care about, and isn't very well acted. It rises above a lot of modern-day shark movies, but it doesn't rise above many movies in a more general sense.
Final rating:★★½ - Had a lot that appealed to me, didn’t quite work as a whole.