Continuity: During the famous leg un-crossing scene when SS is being interrogated, a cigarette in her hand disappears and then reappears, but who was looking at her hand at the time?

Continuity: During the interrogation scene, Stone has her legs crossed right over the left then suddenly left over the right and a second later (during the shot where she wears no underwear) right to left again.

Continuity: During the big sex scene you see red marks on Michael Douglas's back. These red marks are from when Sharon Stone scratches him. The thing is, she scratches him a minute AFTER you see the red marks on him for the first time.