Visible crew/equipment: When 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.
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.
Revealing mistake: 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.
Revealing mistake: 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 the cable when her mirror-double grabs her from behind and you can see it vibrate.
Continuity mistake: When 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. In the next shot, when the cars are still and parked, the spy holes have been covered up.
Continuity mistake: 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.
Revealing mistake: When Bruce and Pat get into the restaurant, chasing Carol Anne's reflection, right before Carol Anne's reflection in big mirror runs across, you can see Carol Anne crouching behind a table in reflection. Her red pajamas are very well visible.
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?
Revealing mistake: When Scott (covered in ice) is ejected from the pool in front of Bruce, watch carefully. In the first few shots, he has some pretty convincing "ice" prosthetics attached to his body. When the camera cuts after he runs into the door, however, suddenly he's merely covered in really cheap-looking foam/slime that doesn't resemble ice in the slightest. And it's not supposed to be ectoplasm, it's supposed to be ice.
Revealing mistake: When Bruce and Patricia are on the crane on the roof, a wide shot of them both reveals their stunt doubles. (01:24:55)
Visible crew/equipment: The movie is all about reflections, but I don't think it intended to have a camera rig reflected in a teapot in the first scene with Zelda Rubenstein. (00:20:40)
Continuity mistake: When Scott and Donna return to the pool with the snacks, the position of the Coke cans that Scott is holding changes before he and Donna kiss. Note the position of the barcodes. (00:45:00)
Answer: At the end of the movie, it was a different actress who played Carol Ann as the actress had already died by that point. Rumor has it that the actor who played Scott was so distraught over her death that he couldn't come back to film the scene.
lartaker1975