I just saw this film tonight and was really inspired to write some sort of review. Saying what they did right, and what they did wrong.
In case no one has seen it yet, I'll give two reviews. One contains spoilers the other is mainly a summary.
Summary - No Spoilers
Full Review - Lots of Spoilers!
Now that I got that out of the way, I'll say that this was an okay movie. Not the best, though. Wait for it to come out on DVD, though. Don't spend money on tickets, just rent it or something.