Cherie Lunghi in nude scene from Excalibur which was released in 1981. She shows us her tits and ass in sex scene.
Also Katrine Boorman naked in Excalibur. We can see sex scene with her. So Katrine Boorman is not shy and she demonstrating her boobs.
In addition there is sex scene with nude Helen Mirren. Thanks to Helen Mirren for her tits and other sexy shots in that video.