The Howling (1981)
Directed by Joe Dante
Starring Dee Wallace, Patrick Macnee and Dennis Dugan
At the beginning of ‘The Howling’ the female lead is in a cinema watching a film which contains a rape scene. We only see a couple of seconds of this scene before the shot cuts away, but the director actually filmed three minutes of the rape and the rest ended up on the cutting room floor.
This footage has since been rescued and is available to watch below. There is no sound because the director didn’t bother to record any, knowing they’d just use a few seconds in the cinema scene.
Anyway, here’s the scene in full as two guys tie a girl to a bed, pull off her clothes and rape her.