IMHO, Save 2 hours of your life ...
And don't watch this movie. The synopsis sounds interesting and tempting, but don't be suckered in.
This film needed to get over itself in preproduction. The characters make some key stupid decisions which, had they been as smart as normal people at any key point in the story, would have given everyone the ending they deserved.
And the music ... What a drivelly excuse for a soundtrack (I refuse to call it a score), and it just. Keeps. Coming. Back.
The only reason I stayed past the first half hour was the positive reviews right here on IMDB.
DONT BE SUCKERED! Escape while you can!!