Revealing: In the scene when Carol Anne has been hypnotized by the shrink, a hand breaks through the desk and throws a coffee mug through the mirror. You can briefly see the reflection of the plexi-glass protecting the actors behind the mirror as the mirror breaks.

Continuity: In the scene where Pat and Bruce are in the garage being chased by the cars covered in ice and snow, the cars pull out to face them and you can see that the windscreens on the cars have tiny spy holes for the drivers to see through but in the next shot when the cars are still and parked, the spy holes have been covered up.

Visible crew/equipment: In the scene where Carol-Anne is running away from Kane's voice in the garage, she ends up standing in a puddle, only to have hands pull her in seconds later. But when the camera moves down Carol-Anne's body to the puddle, you can see the platform the actress is standing on.

Revealing: In the end sequence, you can see that one of the mirrors is faked, by having cables run floor to ceiling to simulate the seams. Nancy Allen bumps in the cable and you can see it vibrate.

Factual error: When Bruce and Patricia are in a lift after being chased by the cars in the garage, the lift rapidly descends but the two people in the lift are seen struggling on the floor when they should just about be on the ceiling due to the speed of the lift's descent.

Continuity: At the end of the movie, when Bruce is carrying Carol Anne out of the mirror, you can see that Carol Anne is wearing some type of heel sneakers and when they come out of the mirror, her pajamas have feet.

Visible crew/equipment: When Donna is in the bathroom, before she goes to the party, Carol Anne comes in to say that she looks great. When they walk out of the bathroom, you can see a crew member in the mirror.

Factual error: The film takes place in Chicago. At the beginning of the film, Heather O'Rourke gets off a bus. Check out the trunks of the trees that grow on the island in the middle of the street. They are the trunks of palm trees. Chicago? Palm trees?