Revealing mistake: Riggs handcuffs himself to the depressed businessman. They jump off the building but they're not handcuffed to each other anymore. They used plastic cuffs which could separate during the stunt in case anything went wrong. They break just as they jump, so they grab each other's hands to stay in contact. After they land the cuffs are attached again. (00:31:00)
Revealing mistake: After Nuclear Man destroys the cab's hood, the shot changes and there's a thick string running behind him all along the car, and the cab driver is stretching out to pull it. Probably he was activating some sort of bad FX.
Revealing mistake: As the Predator tends to his wounded leg, one of his claws can be seen bending as if made of rubber.
Revealing mistake: In the shot where Dick Jones is falling from the top of the OCP building, both of his arms appear to be about a foot longer than they should be. (01:36:30)
Revealing mistake: When Jack is hanging out of the truck you can see him standing on the hood of the car which Lydia is driving. At some points we get camera view from the back seat of the car. In some angles the mirror inside the car disappear. This is to prevent us from seeing the camera. (01:04:15)
Revealing mistake: When the Marines are jogging through the training camp complex, singing "I don't know but I've been told..." you can see the British road junction markings on the tarmac underneath them. There is little evidence to suggest that there was any attempt to disguise or remove them.
Revealing mistake: The Eternia out-door scenes depicting the conquest of the Castle Grayskull area are actually one long shot subdivided into smaller parts. Look at the captured Eternian soldiers marched to the castle; they cover very little distance between the shots.
Revealing mistake: As Hi is racing after the baby, a close-up of his tired face driving the brown Caprice shows the gear selector is in "Park".
Revealing mistake: During the car chase scene the cops shoot out the rear window of the convicts car, it is obvious that someone smashes the window with a hammer or crowbar from inside the car.(view in slow motion).
Revealing mistake: There are no keys in the ignition when Mike is driving the white truck.
Revealing mistake: When Derek falls and is rolling down the cliff, it is a very clear dummy. It's legs and arms are in a stiff seated position. (00:23:15)
Revealing mistake: When Fireball takes off for the first time, if you look way above him at the top of the tower block behind him, you can see the shadow cast by the rig that is used to lift him up.
Revealing mistake: After Cherry has malfunctioned, in various shots, such as when she inanimately lies in bed with Sam, you can see her breathing and blinking. She is supposed to be an inanimate robot. (00:13:05)
Revealing mistake: As Sierge shoots the Tsjude behind Aigin, a protective pad beneath the Tsjude's clothes is visible catching the arrow. (00:47:30)
Revealing mistake: After the barber is shot dead by Giuliano and Aspanu has fixed the betrayer note on his shirt the corpse takes a rather deep breath. (01:20:00)
Revealing mistake: At the end of the movie after Necros falls from the plane the camera cuts back to Bond, as he tries to struggle his way out of the nest. If you look closely under the nest you can see Necros at the start of his fall again. Also notice Necros is replaced by a dummy.
Revealing mistake: At the end of the movie, the trio arrive at the oil fields, crouch behind the rear of a car and Axel picks up some red dirt, explaining that it's the same as what was on Bogomil's shoes, and the horse. It is obvious that the crew just spread a small area of red dirt around for the shot. The majority of the area is regular brown dirt.
Revealing mistake: When the Harpoon gets stuck on Romero's body, the pad underneath his shirt is noticeable.
Revealing mistake: The principal apprehends the two younger and bigger guys at once (and for some reason they don't gang up on him and kick his butt). The other guys in the Chevy decide to get back in and drive away. You can already see on the dirt the path they will follow, which is logical for the bit in reverse but not so much for the part when they turn left and go forward, which is not how the car could arrive to that point. And when later the car circles around, it moves also on a path that was not showing in the first shot. (00:11:50)
Revealing mistake: Terri is replaced by a stuntman in a dark blond wig once she puts on her motorcycle helmet outside the hardware store.