Continuity mistake: 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 mistake: 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 mistake: 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.
Continuity mistake: As Michael Douglas and his partner drive Sharon Stone to the police station for questioning in the shots of her she's sitting on the left of the rear window. When Gus Moran looks at her in the rear view mirror she's on the other side next to a large police light. Throughout the scene she moves left and right between shots on the back seat.
Continuity mistake: In the scene where the actual murder takes place the blonde woman stabs him in the neck. The body has no blood on it. The second stab the body is covered with blood. This all happens in one eyeblink.
Continuity mistake: Douglas opens a mailbox to check the mail for clues. He then puts the mail back and closes the box, a second later you hear him closing the mailbox again.
Continuity mistake: Michael Douglas goes back to Sharon Stone's house where she invites him upstairs as he watches her break up ice cubes with an ice pick. If you look closely at the painting above her fireplace, you can watch the different times of day go by between shots in the reflection of sunlight off of the pool and onto the picture.
Factual error: Michael Douglas is lying on the couch watching the Jeffersons. Jeanne Tripplehorn arrives and they talk. In the background the theme song to the Jeffersons is playing, but it is the song from the beginning of the show rather than the closing theme.
Continuity mistake: When Roxy runs off the bridge you see the Lotus crashing over with its low beams on - when you see the car fly off the bridge its brights are on.
Continuity mistake: Sharon Stone leaves the top of Michael Douglas' back all bloodied with her sharp fingernails. After the lovemaking scene, Roxy talks to him in the bathroom and we see the reflection of his back in the mirror. The scratches on his back are now much lower and not anywhere near the right place.
Continuity mistake: When Michael Douglas goes back to Sharon Stone's house, there's a table with a lamp on it next to a white chair. The table moves back about four inches throughout the scene and the pillow on the chair, the flower centerpiece, and the stuff on the table on the right also move as the scene progresses.
Visible crew/equipment: After the scene in Jeanne Tripplehorn's apartment, Michael Douglas meets with the other investigators back at the police station and the reflection of the cameraman can be seen in the glass partition behind him as an investigator says, "I made a couple of calls to Berkeley."
Continuity mistake: In the sequence where Michael Douglas is driving along the coastal highway, his car's center rear-view mirror appears and disappears over and over.
Factual error: When Nick is looking up information about Hazel, the computer says she was released from San Quentin. That's a men's only prison.
Continuity mistake: When the detectives ask Catherine to go in for questioning, she has her hair down. Then, a minute later, she comes out with her hair up. Problems: one, there's no way Catherine could do that on her own, and no-one else is in the house; two, even if she could it would take much more than a minute, say thirty minutes.
Continuity mistake: Back at Michael Douglas' apartment, Sharon Stone uses his ice pick to break up a big hunk of ice for their drinks. In front of her is a tray with various items and loose change in it, with a padlock and a piece of paper to left of it. Everything in the tray and the piece of paper move throughout the scene without anyone going near them.
Continuity mistake: Michael Douglas waits in the dark in Jeanne Tripplehorn's apartment and says to her after she walks in, " Tell me about Catherine". At first we see a couch and chair on the right side of the room but two shots later as he walks towards her these two items have been removed from the room.
Continuity mistake: In the scene where Rocky and Nick are talking in the bathroom you can see Nick's back in the mirror - he has two nasty looking scratched up areas of bare skin on his back - then when he turns and returns to the bedroom you can see that he now only has a couple of superficial marks.
Continuity mistake: During the first sex scene between Michael Douglas and Sharon Stone, Miss Stone's nipples at first are very erect, but in the next shot are not.