The film was very well done, and superbly photographed, but I wish they had warned the viewer of the graphic content. In many cases worse than blood and guts, the sheer quantities of people blacking out and dying or almost dying was absolutely frightening. Worse for me than a horror film. I had bad bad nightmares afterwards. so if you are into it then you will love it, but I wish I hadn't. It's almost as if these people want to die. they are just pushing the limit time after time to see how close they can come to death.