Despicable.
I just came off the Movie 43 board, where everybody is slamming that movie left and right calling it the "worst thing they've ever seen." Clearly they haven't seen a lot of movies.
This movie is despicable, not because of the writer or director or cast involved, but because stuff like this really happened. All the characters and the circumstances surrounding them are abominable. I'm not trying to say this is the worst movie ever, but it definitely depicts something that is hard to watch or even get into. I hardly feel any sympathy for any of the characters, when they're all acting like rich, privileged snobs.
I did enjoy the soundtrack, though.