Saw the screener last night - good movie!
The actor playing Uday and Kalif did an excellent job. The movie is violent but not as violent as it could have been if they had shown more of the stuff Uday did. While there are always three sides to every story, Uday's craziness was well known and cited even by his own people. He's not one that will be missed.
The rapes in the film weren't as graphic as some but they were uncomfortable to watch. The killings were like normal American films, so there was nothing shocking there. I have to give the lead actor credit as he flowed seamlessly from Uday to Kalif to Kalif imitating Uday. Overall, I really enjoyed the acting in the film and the film itself was pretty good.