10 Films You Must Never Watch With Your Parents

3. Don't Look Now

Don't Look Now is an exemplar horror from Nicolas Roeg, working at building an unsettling tone before an almost ridiculous finale rather than going for all out terror. The film that to some degree inspired Antichrist - both films feature a child dying of parental negligence in the first scene, with the couple moving to a new location to grieve - Donald Sutherland and Julie Christie play the He and She parts and instead of a cabin you get to see an out-of-season Venice (spoiler, it's very creepy).

Rather than being a whole film of parentally unsuitable moments, Don't Look Now has one overriding reason you should keep this one as a personal watch; halfway through the two leads engaging in one of the most relentless sex scenes ever put in a mainstream film. Intercut with the couple getting ready to keep the raunchiest moments up to your imagination, it's an unflinching sequence that is almost too much for the film in general.

Controversy still exists today over whether the sex was really acting; sparked by those working close to the production and sticking thanks to how intimate the scene, Sutherland has as recently as 2011 had to deny rumours he and Christie had sex.

The Worst Bit: The length. The scene is graphic as hell, but it's the sheer never-ending nature of the scene that make it a parent no-no.