Behind The Green Door

Behind the Green Door is a 1972 feature-length pornographic film, widely considered one of the genre's "classic" pictures. It was the first hardcore film widely released in the United States and the first feature-length film directed by the Mitchell brothers and starred Marilyn Chambers. It was adapted from an anonymous short story of the same title, which was circulated by means of numerous carbon copies. The story's title makes reference to the 1956 hit song "Green Door." The film was given an X-rating by the MPAA.