I think this is a new genre that they're all sort of working their way through it and haven't got all the kinks worked out yet but it's a genre that works for me.

So much average

It's the kind of movie you'll want to see a second time with someone who hasn't seen it yet, to remember what it was like to watch it for the first time.

It is neither dumb nor smart enough to be fun, and spends way too much time with its boring human characters.

I don't like the edging because they need to be alive together. everything was too difficult to save the life but that was just illusion

It's a bit slow but shows you what can happen I enjoyed it

A solid, easy to watch shark-attack movie.Not without its flaws, but mostly ones of the sort that won't bother non-dive experts. This stands up well alongside such films as The Reef, The Shallows, Open Water, Black Water, Rogue, Frozen, and the like.CG sharks have pretty much been cracked now, and so has underwater blue-screen, so there's not much in the VFX to distract the viewer from all the typical cat-scares required of the genre.Nicely shot, with good light and good lenses on the surface, and chopped broccoli (no lie) in the tank to add particulates to the underwater scenes. Overall, it works pretty well. The film looks slick and professional throughout. The script, as is often the case with these type of films, is the weakest link, closely followed by the acting. However, nothing about it is bad. Just not great.Unusually for a film in this genre the running time is respectable; none of the usual 75 minutes malarkey that leaves you feeling short-changed. And unlike most films in the genre, this one doesn't fill half its running time with boring and poorly executed setting-up (padding) at the beginning. It jumps straight in, so to speak, and fills almost the full 90 minutes with actual story and action. This alone makes it stand out.However, despite its many good qualities and general lack of failings (apart from factual errors which can be ignored in the interest of drama), there is one rather unforgivable blemish which somewhat spoils the whole experience, and that is the ending, which is weak, contrived, and entirely unsatisfying. Trying hard to avoid spoilers, I'd say that the film would be vastly improved by ending it on the surface, rather than what happened afterwards. But maybe that's just me. Overall, though, a very enjoyable addition to the genre.

This movie should be terrible... there are so many things wrong with it. The CGI sharks, the kind of expensive scuba equipment being used which doesn't gel with the rusty old boat and cage, the lighting which aims to make things darker than they would be, Matthew Modine caught laughing in a tense scene...But if you can suspend your disbelief, the two female leads do a great job. There are jump scares aplenty and there is real tension.The ending will leave you scratching your head about who, if anyone, survived... and I appreciate that.It could have been a lot better, though. There's too much deus ex machina going on here. Obviously, we need the protagonists to have some state of the art scuba gear with radio mikes so that they can talk to each other and communicate with the boat... otherwise it's going to be a silent movie. But this kind of equipment is unheard of with your average rusty-boat dive operator. The 40 meter range on the radio is rather arbitrary. They should have gotten some real footage of great whites instead of all CGI. It would have been good to see a bit of the drama on board the boat as they decide what to do about things.All in all, it's just a fun jump scare movie.