Somewhat entertaining, but where's the rest of it?

Rating: 5/10 (3 January 2008)

I would have given most of this movie a 7 or an 8, however, the ending is hands-down the worst I have seen, so I had to give it a lower score based on this alone since it really ruined the whole movie, rendering it completely pointless.
At the end of the movie, everybody in the theater was looking at their companions with confused looks on their faces, including myself. I didn't see anybody, nor can I imagine anybody coming out of the theater after watching this movie saying "Wow, that was an awesome movie". So all the 10/10 reviews that this movie is getting is beyond my understanding.
There isn't much dialog in this movie at all. The little dialog there is is incomprehensible, slack-jawed speech. You could put the whole movie on mute and it wouldn't make any difference to your understanding of the movie, which is a good thing since actions speak louder than words. But I doubt anybody will be getting a best actor nomination for their part in this movie.
Apart from that, 80-90% of the movie was somewhat entertaining. Nothing out of the ordinary. But the movie does make you wonder what's going to happen next. Woody Harrelson's character could have been left out completely though. He was there to confirm the seriousness of the situation, nothing more.
All in all, not a terrible movie. But I really wish they would have tested different endings. If they did, I would hate to know what the second choice was.