Revealing mistake: Terri is replaced by a stuntman in a dark blond wig once she puts on her motorcycle helmet outside the hardware store.
Revealing mistake: When Paul Kersey blows up the restaurant, there are obvious dummies in the booth. (00:46:01)
Continuity mistake: When Frances takes Helen to sleep in the car, he puts her in the back seat from the drivers side. In the morning the camera is looking at her through the the window of the door on which she appears to be leaning. Yet when she gets out of the car later in the scene, there is a canvas draped over the door way.
Continuity mistake: After the grocery store visit, Joan Jett walks to her room at the hotel and goes to her room on the second floor, a short time later she opens her room door which is now on the first floor. (01:35:00)
Continuity mistake: Rick Latimer is at the bar with his buddies. He spots his ex-wife on a date with the divorce attorney and begins rambling. "This kind of sh. Happens", one of his friends says. The friend next to him, rightmost position, is smoking, and his hand is suddenly raised at the cut. (00:02:45)
Audio problem: At the beginning, when mother and daughter arrive from New York, they try to find someone who can take them to the Sullivans'; while working this out, there is a man playing a guitar; in the beginning, everything's fine, but soon his hand movements don't match the sound.
Continuity mistake: When Molly Ringwald is on the phone at the club and gets approached by the girl in orange, throughout the whole conversation the position of the phone receiver in Randy's hand is wildly inconsistent. (00:09:30 - 00:11:00)
Continuity mistake: During the dinner quickly interrupted by the record. Anthony Marston raises his glass to Vera, but his hand was nowhere near the glass in the previous shot - not even on the table. (00:14:30)