Continuity: In a scene where Marisa Tomei visits Christian Slater at his home, she unties her scarf. A minute later, it is shown tied. Then she unties it for a second time.

Factual error: After Marisa is almost raped by those 2 guys, she wants to be driven to work. Her brother drops her off, but wouldn't give her the car because he had school the next day. But it was the day before Christmas Eve that night, and who has school on Christmas Eve?