Revealing mistake: As Kate drives the Jeep downhill near the end of the movie and swerves the Jeep quickly to avoid another vehicle, her head and body remain upright throughout the maneuver. Of course she was no doubt in front of a blue screen, or on a set, so there was no violent maneuvering to react to.
Revealing mistake: During the bison shooting scene, a bison goes down close to the camera and both horns jiggle like they're about to fall off. Looks quite fake.
Revealing mistake: When Reggie and Tim the sheriff's son are in the funeral home and get confronted by the two black women, the silver ball comes to attack and kills one of the women. Tim saves the day with a revolver, but when he spins the cylinder before firing, you can see all of the cartridges in the gun have already been fired: dimples in the centre of each casing.
Revealing mistake: When Yvonne comes home to find her ex-husband in her apartment, he comes out of the bathroom with a towel around his waist. He then goes and sits on the couch. At one point he uncrosses his legs and you get a flash of his underwear he's wearing underneath the towel.
Revealing mistake: When the tiles pop off the wall near the beginning, each pops off right in the middle. The nozzles squirting out the water are obvious.
Revealing mistake: In pursuit of the bus, Eddie is turning the van to the left from the main street into an alley. Two different takes have been edited together, as the position of the cars behind and in front of the van changes (not dramatically though, the coordination in the scene has actually been better than much easier scenes). Also you can see on the asphalt obvious skidmarks from previous takes. (00:30:45)
Revealing mistake: When the doctor is cutting the forehead, a red tube to release fake blood can be seen behind the scalpel. (00:30:12)
Revealing mistake: When Pumpkinhead picks up the guy to break his back, as he's doing this, you can see its not a real person. Looks like a stuffed doll.
Revealing mistake: When Preston crashes into Quigly in the bowling ball to send him into the pool, you can both see and hear the launchpad that actually launches him.
Revealing mistake: When Blankman is using his homemade grappling hook, you can see that the string is attached to the top of the invention and turning the handle isn't doing anything as he's simply being lowered.
Revealing mistake: When Alex throws Banes at the lab, you can see the stunt double falling for him.
Revealing mistake: Near the end of the film when Jess is hanging from underneath the plane, you see her normal thin body frame. When see lets go, you can see that her body shape has changed and there is a parachute pack underneath her jacket.
Revealing mistake: At the black market, Honda and Balrog bring Ryu into the tent that Ken is already restrained in. When they enter, Ryu begins to fight with Honda and Balrog but Chun-Li ends their fighting by emerging from a curtain wielding a knife. Ryu backs into the knife and it bends.
Revealing mistake: Most of the police cars are late model Ford Sierras, but any police car that crashes has been substituted for a much older early model Sierra.