When Annie is dropped, she clearly falls on her butt, yet she breaks her knee.
When Cristal falls down the stairs at the end, she is nearly at the bottom when she is pushed, yet the next shot shows her falling from much nearer the top.
Toward the end of the movie, when Nomi visits Cristal in the hospital, she says goodbye and they kiss. In one take Cristal's lipstick is smeared, from another angle it is perfect, and the picture switches between the two takes a few times.
When Nomi and Cristal are having drinks together, Cristal has a French manicure. After they leave, her nails are pink.
When Nomi strips for the first time, she is wearing a laced-up shoe. When she storms off the stage, she is wearing a Mary Jane type of shoe.
After Annie's fall, the scene cuts to Annie still lying injured on the empty stage and the entire audience gone. In a Vegas production, the show would not have ended and the audience would never have been sent out: paramedics would have been waiting just offstage to quickly move any injured performer and an understudy would have immediately stepped in so that "the show could go on" with as little interruption as possible. The only other interpretation was that Annie was left lying on stage until the end of the show.
After Nomi's friend is raped at the party, she's in the hospital where the doctor reveals that she's had vaginal tearing, then after he leaves Nomi tries to call the police to report it and Zack stops her. But the police should have already been notified by the hospital as is standard procedure with suspected sexual assault victims.
When Cristal falls, they later say she has a compound fracture of her hip. A compound fracture is when the bone breaks the skin, and there's not a drop of blood when she falls.
It is standard practice in Emergency Medical Services to put the patient in a cervical collar (a plastic collar that immobilizes the cervical spine) in any fall, even if there is no initial evidence of neck injury. Yet Cristal does not have a cervical collar when EMS personnel are carting her out on a stretcher after her fall.
During the infamous pool-sex scene, there are several shots in which it can be plainly seen that Kyle MacLachlan is still wearing white underwear.
When Nomi is playing the slots at the beginning of the film, the camera is reflected in one of the machines.
The shadow of the camera passes over Nomi when she is in the alley after storming out of Crystal's dressing room (for the first time)
When Nomi leaves the jail and is in her friend's car, they make a right turn and the crew is visible, reflected in the car's rear window.
At the opening, Nomi stands near a road sign: "Salt Lake City -- 10; Las Vegas -- 342". Las Vegas is 421 miles from Salt Lake City on the I-15. The sign should read: "Las Vegas -- 410".
The trained chimps are referred to throughout the film as monkeys. Chimpanzees are apes.