Naomi Watts, intense masturbation scene!
 

Naomi Watts masturbates in this intense scene from the film Mulholland Drive. You NEVER see anything like this in a Hollywood movie (and Naomi Watts is a staggeringly beautiful woman). The scene has an unpleasant ending, though, as Naomi's character is tearfully getting off to her dead lover one last time, before commiting suicide (thankfully, that part is not shown). Ms. Watts has stated in interviews that she was both extremely proud, and extremely embarrassed by her performance in this scene. It's very convincing. She may have actually been masturbating.

Caps.