It graphically portrays that actions have consequences. Not just for ourselves, but for those we influence. It showed that grace can shine in the bleakest of situations to touch and free the darkest of hearts. The pathetic brew of angry ignorence, denialism and terrible insecurity that drives people to want to be part of something, indeed anything, that has something to offer that they perceive to be bigger than themselves is a sad indictment of our society. In this movie it's racism, but it really could be anything that drives someone to find meaning in destructive and self destructive behaviour.
Bad belonging is better than no belonging.
Bad meaning is better than no meaning at all. I agree with the comments regarding the positive message of this movie, but I feel that the language, extreme violence, nudity and sexual situations is inappropriate material for Christians to be viewing. I don't think He would be sitting there next to me. This movie is a harsh, brutal look at how parts of our society is lied to by satan. But is was good and not for kids.