Interesting for the first 15 minutes.

Rating: 3/10 (6 May 2006)

This movie apparently can not decide what type of suspense and/or surprises to throw at the audience - and ends up throwing everything possible in a random sequence, and multiple times. Usually that would mean "you never know what's going to happen" - but not this time, sorry.
For the first several minutes, when the action still starts to build up - after the initial surprise, largely off-the-bat and failing to have any reasonable explanation for such a peculiar chain of events - it is interesting, creepy, claustrophobic, unsettling and even leaving some people that are not very fond of closed spaces a little short of breath. But then? Then the main attraction enters, and from that point the movie goes downwards. Every corner the same surprise. Every over-the-shoulder glance the same surprise. Every flickering of light the same surprise.
See, master Hitchcock brewed up a recipe for a good scary movie - start off with an earthquake and then start building the suspense. This movie's creators took a different turn: start off with pointless gore for a kick start and just keep it steady until the end. Too bad that after some time the constant suspense wears off - more enemies, even more enemies, oh, one more enemy, and how about yet one more for good measure, as in a badly paced video game.
All in all - if a movie has about three or four good jumper scares, but the audience starts chatting during the rest, making funny remarks "where is the next enemy going to jump out from and how will they glare point-blank into the camera lens, as if could be scary twice", it means failure at capturing and holding their attention.
Additionally, beware the Signs syndrome: this movie used most, if not all, of its good shots in the trailers.
Watch it only with a scaredy-cat girl you're trying to pick up, perhaps you'll get a few hugs. But don't count on more. From the movie, that is.