John Lamb - Sexual Freedom In Denmark (1970)

Starting as a documentary on the sexually liberated culture of late-Sixties Denmark, Sexual Freedom in Denmark winds up incorporating major elements of the marriage manual form and even manages to squeeze in a montage of beaver loops and erotic art. All narrated with earnest pronouncements concerning the social and psychological benefits of sexual liberation. Tame by the standards of 1971, when hardcore loops and features would begin to flood certain metropolitan markets, the film was shocking enough in 1970 to instigate media attention and long lines at the box office.