Continuity mistake: When John comes to get Dawn and they leave Sally's house, the Chihuahua isn't with them, but all of a sudden it is back with them on and off throughout the movie. (00:05:45)
Continuity mistake: In Sally's bathroom, John takes Dawn's pants and panties off. When Sally enters the bathroom, Dawn has her panties on again. (00:05:35)
Revealing mistake: In 1981, when most of the story takes place, the 1981 Dodge Diplomat was the most common police cruiser, but the director of this film chose the 1987 Chevy Caprice Classic.
Factual error: Before the Wonderland Ave. killings a bottle of Jack Daniels whiskey is displayed on the coffee table. The label shows, "Jack Daniels Kentucky whiskey" which should be" Tennessee whiskey".