In the network version shown on TNT in the scene where Alex phones Dan at 2:13 a.m., there is additional dialogue between Dan and Beth after Dan hangs up the phone that is not in the theatrical/DVD version. Beth asks, "Who in the hell was that?" Dan says that it was a client calling and that this happens when you're a lawyer (being called at odd hours). Beth says that it's the middle of the night, still wondering why someone would call at 2:15 a.m. Dan justifies this by saying it's only 11:00 or so in L.A.
AMC version uses alternate takes of the bedroom scene with Alex covered with a sheet over her chest before she kicks out Dan in order to avoid editing out nudity. These takes were originally rejected by Adrian Lyne because he did not think the performances were up to par.
Original ending had Alex committing suicide while dressed in white, and Dan being arrested for her murder. Dan's wife, while looking for the phone number of her husband's lawyer, finds a cassette tape recorded by Alex in which she states her intention to commit suicide. The wife runs out of the house with the tape (presumably going to the police) and the film ends with a flashback of Alex slashing her throat in the bathroom while listening to "Madama Butterfly".
When preview audiences hated this ending, a new one was shot (where Alex is killed by Dan's wife with a gun). The original ending still appears in the Japanese release and was added to the US video and laser editions.