Revealing mistake: When Ripley first burns the egg plants inside the nest, the Queen screams and moves her head. The steel rod used to hold the Queen's head to the rest of her body is easily visible.
Revealing mistake: In the scene where Ronnie visits Brundlefly for the second time we see Brundlefly walking on the ceiling and wall, however his shirt doesn't remain consistent with gravity. This is especially obvious when he pulls his shirt up to show Ronnie his new tumor and then places it back down. The shirt appears to be being pulled up to towards the sky from Ronnie's perspective. (01:07:30)
Revealing mistake: When the counselors show up at camp with groceries, Paula and Cort walk away with bags to take inside. However if you watch the reflection in the side of the truck closely you can see them sit down and wait for the scene to end. (00:17:55)
Suggested correction: One of two things 1. They could have waited until they got all the other stuff to go. 2. One could have dropped a bunch of stuff and then the other went to help.
Revealing mistake: In the car chase scene where the cop is after Roland, you can see that there is no key in the ignition of the cop's car.
Revealing mistake: The "blower" on the yellow Firebird never runs. NO wonder he couldn't beat the Wraith. (00:44:10)
Revealing mistake: It is obvious a dummy was used when Steve is thrown from his easy chair into the kitchen cabinet.
Revealing mistake: When Terry dismounts the bus, people on the street look over at the camera. (00:03:20)
Revealing mistake: When Jim hits the brakes in his stolen patrol car, the two pursuing police cars turn and flip over and over. As they roll, the 'roll cannon' is visible on the underside of one of the cars (a round steel tube in a hole in the floor) and at left, the two cannon slugs from both cars bounce down the road. This device fires the slug downward, and the force behind it lifts the car when the slug hits the road, launching the car over.
Revealing mistake: When the ice-cream van is being shot at the end of the film, for a single shot you can see the driver sitting in it.
Revealing mistake: 10 minutes into the movie, the hijacker is at the cockpit cabin door and forces the stewardess to have the captain open it. If you look behind the hijacker at the main cabin door, you can see light coming through it on the upper right each time they show him from the front. It's a sealed plane door, there wouldn't be any light coming through.
Revealing mistake: At the end of the film, when the main female character is done taking a shower, she tries to get out of the glass stall. Suddenly, the ghost turns on the shower to scalding hot temperatures. She is unable to get the door to open, so she punches through the glass and climbs out. As this is happening, if you look behind her, you can see that no water is coming out of the shower head, though you can still here the hissing of the water.
Revealing mistake: When Sean Connery and the others are examining the corpse found in the water, the dead body's eyes blink. (01:01:05)
Revealing mistake: When Arnold throws the bad guy through the glass door at the dress shop, it shatters a split second prior to him going through it. (00:55:40)
Revealing mistake: During the big car chase (in the 1950 Mercury Monterrey), Cobretti throws the toggle switch for a nitrous boost, and the speedometer immediately leaps to well over 100 mph. However, all the exterior shots show that the cars are barely going 35 or 40 mph, in traffic.
Revealing mistake: When Norman drives Dukes car into the pond, it's obvious no one is in it.
Revealing mistake: When the bully's held up by Sam wires can be faintly seen.