You guys forgot one of the most infamous films ever made: 1980's Caligula (unrated version), which has been described as the most expensive porn film ever made. From what I understand, Helen Mirren wouldn't have been in the film if she had known of the hardcore sex scenes that were filmed seperately by Bob Guccione with the "other" actors. Another controversial film is Requiem for a Dream by Darren Aronofsky. If you haven't checked this out, you should, but be warned that it is extremely graphic and disturbing, which is what I love about it. Make sure you get the unrated director's cut.
