Actor Kiefer Sutherland was left squirming as a teenager when he watched Julie Christie's sex scene in Don't Look Now because he could not stand seeing the screen siren frolicking with his father.

Donald Sutherland starred alongside the British actress in the creepy 1973 thriller, and their saucy scene was so graphic it sparked controversy when the film was released.

24 star Sutherland admits he was keen to view the explicit footage when he was a teenager, but seeing his father in the scene ruined the excitement.

He tells U.K. motoring show Top Gear, "It was a real struggle at about 13, 14, because Julie Christie was stunning and you're 14 years old and you're watching and you're trying to block your father out! Then - 'No, this isn't going to work!' But yes, that moment was kind of tricky."