I thought this was actually a pretty good movie. It's got good action sequences and some cool death scenes. Most of the characters kind of deserve it too, so some of the kills are really satisfying. Like the one that runs off to the mine field.
I thought the actors were all pretty decent, but the script didn't really give them the most to work with I don't think. It's all quite simple stuff. Kids go where they shouldn't. Bad stuff happens. Thing is, if you like these types of horror/survival films like I do, then this is a pretty good one. If you don't, then I guess it's not so good. There's a few good jumpy bits and a really nice little move at the end to make it a bit open ended too. Worth your time if you're looking for something dumb and fun.
