This is a film from the same man who brought us Donnie Darko - you can safely expect it to be WEIRD. Though you'll probably not expect it to be as weird as it is, if weird is what you like, you're likely to be pleased.
The idea is great and I expected it to be tense, weird little film. Which I would've been happy with. Then it goes bigger, a whole lot bigger than I thought and, well, WANTED. The plot goes quite conspirital, goes on for quite a while, and once or twice I had to pause it to get my bearings.
That said, it's still good, and on second view is probably a lot better once you know what's coming. The two main characters are well cast - especially Cameron Diaz - and you feel for them, care whether they push the button or not. The character of Arlington Steward is superbly played and is likely one of the weirdest and most sinister, suspenseful characters you'll see in a movie.
It keeps you on the edge of your suit, there are one or two jumpy scenes, some awesome effects, one or two creepy scenes and you don't have much chance once it kicks off to be bored. A good, definitely unpredictable thriller.
The bluray transfer is awesome, you can see every little detail on Cameron Diaz's face, Arlington Steward's scarred face looks particularly real (not to mention gruesome) and the special effects with the water are especially enchanting. Well worth a good seven quid which is what I paid.