|Starring||Mandy Moore, Claire Holt, Chris Johnson, Yani Gellman, Santiago Segura, Matthew Modine|
|Release||16 JUNE (US) 26 JULY (UK) Certificate 15|
Still, when you're faced with the choice of drowning or being eaten by sharks, what's the difference? Once Lisa and her sister (Claire Holt) are down there, what had been a fairly flaccid affair gets good and tense. What's best about it is Johannes Roberts' choice to keep the vast majority of his film underwater: once they're down there, we're down there with them, and there's no cutting back to the surface.
This has two pleasing effects. One, it maintains the claustrophobic atmosphere, putting us in the sisters' flippers so we feel as trapped as they do, and two, it allows our paranoia to fester a little more: are the two Mexican guys and Matthew Modine's Captain Taylor keeping them down there deliberately? We were given hints at the start that they were somehow disreputable, and though Taylor's voice over the radio sounds sincere as he insists he's doing everything he can to bring them back up to the surface, we can't be sure.
It is very exposition-heavy, with Taylor more or less reading out the NHS Choices webpage about the bends and how to avoid it over the radio. And the pair give us the benefit of their own narration ("My air's going to run out! Got to get to the spare oxygen tank!") to keep things moving along, but none of it grates too much. It's a simple enough story that keeps on putting little obstacles in the characters' way to halt their progress, and the solution always begets another problem: they're too far down to hear Taylor on the radio so have to leave the cage and swim up, but that puts them in sharks' way, and so on.
All of this is pretty gripping overall, but this sort of thing relies on character. The motivation we're given at the start for Lisa to ditch her natural reserve, which is to show her boyfriend she's not boring, isn't convincing, and also is a reason we know to be ill-considered. It matters less once you're in the drink with the sharks circling, because the tension takes over quite effectively, but you can't shake the feeling that going down there in the first place isn't something her character would do.