Michael Fassbender was not afraid to bare it all in "Shame," a movie about the life of a man with a sex addiction. His sex addiction is borderline out of control, taking over each corner of his life until it's all he can think about. It isn't until his sister (Carey Mulligan) shows up in town that he's finally forced to really confront what's wrong with him. And it's not pretty. The sexually explicit scenes and subject matter earned the movie a 18 rating, so as you can probably imagine, there is a lot of raunchy sex.