Movie sex scenes can either be an absolute cringe-fest, or set the mood perfectly. Sometimes though, the scenes just look too real and people begin to ask questions. Even fewer times, the people on the set will actually come forward and admit to their debauchery.
Samuel L. Jackson
Jackson has become the second highest-grossing actor of all time, but during his career as a stage actor he was under the influence of drugs and alcohol for most of the time. Ironically, his first role after completing rehab was as a cocaine addict in Jungle Fever.