"Behind the Green Door" is a 1972 adult film directed by Artie and Jim Mitchell. It is known for its explicit content and is considered one of the early examples of the adult film genre. The film features a storyline centered around a woman who is taken to a mysterious club where she experiences various sexual encounters. The film gained notoriety for its controversial themes and was part of the sexual revolution of the 1970s. It is often discussed in relation to the broader context of adult entertainment, including the impact of films like this on societal views of sexuality and the emergence of the pornography industry.