One of the best and msot realistic movies Ive seen in regards to both prison life (what I read and the people who I hanged out with who told me) as well as fight scenes and brutality of real fighting is a movie called Felon:http://www.youtube.com/watch?v=Sr0zDhqfOVo
I truly recommend it. It talks about the woods and the power struggles in there etc. and shows how easily you can get from being on top to being jumped or shanked by a bunch of former "friends" in a split second. Ive been in numerous situations like the character in this movie in real life through my associations with such people. The movie is real powerful as it shows Van Cilmer's character was never broken by the guards and their threats/tortures even at the end.
If you think woods are weak or cant punk another race like some of u have been posting think again. This movie shows all about the power struggle and structure of the wood car and the Brand is even outlined in the movie. The movie also in a way is about a wood raising through the ranks and smashing on blacks/samoans/etc but it also doesnt try to glorify that. Instead of watching boys n the hood and trying to be black gangbangers watch something like this which is more inspirational.