I really don't understand the hype around this one. The concept has been done plenty of times before, and it isn't very believable. Yes,the performances are good, and the nail-biting scene of the first escape hurtles you into some quite exciting territory, however it all just sort of hangs there, not knowing which direction to go in. Alas, I fell asleep before the final reel. I was clued in as to what happened afterwards, shame I missed out, but I won't be watching it again any time soon. It's certainly a good film, the pieces are all there, I just didn't feel it.