Continuity mistake: The chutes that Wednesday and Pugsley use changes positions when Fester chases Wednesday.
Continuity mistake: After defeating Fulton Balcus, Sean removes the armor and has no clothes on. As Sean and Mizky leave, Sean is wearing sneakers. Mizky only brought him a shirt to wear.
Revealing mistake: When the man pushes Leroy's body down the basement stairs, as his body is sliding down, when it's almost to the bottom, you can plainly see Leroy lift his head up as he's sliding, although he's dead.
Continuity mistake: When the Love stone is rolling toward Lawanda, she puts up her left hand in an attempt to stop it. In the next shot, she is holding up her right hand. When the stone hits her, she is holding her left hand up again.
Other mistake: When Sue Ellen gets the roses from Gus, the tickets in the card have a date of April 6th 1990. This is suppose to be the summer of 1990, which means the tickets are no good. (01:03:00)
Continuity mistake: During the wedding reception, George (Steve Martin) is called outside to meet with the police because there are too many cars parked in the street. Notice that the police car is curbside completely surrounded by cars. In fact, the whole street is packed with cars, making one wonder how the police car got up to the house.
Revealing mistake: Near the start of the film, when Lt. Harley is watching his love interest show off by doing gymnastics on the tree limbs, several times you can see the actual pole she is swinging on, not the tree limb. (00:08:50)
Other mistake: In scene where Celeste follows her niece Lori to Jeffrey's Apt, she is trying to fool the Doorman and says "He's in 11-A, right?" He replies "2D." Later, when Jeffrey catches Celeste on the fir escape and let's her out via his front door, the apt door is marked "2A."
Audio problem: As Fred slides down the banister he cries out "Whee!" but his mouth remains closed. (00:16:50)
Continuity mistake: Watch the Mustang blow up at the beginning of the movie. It looks to be about an 88 GT convert. When it is shown after the explosion it changes to an 86. Two completely different looking cars. Check out the headlamps. (00:17:50)
Continuity mistake: When Doyle is eating at the homeless shelter, he polishes his silverware and lays down a spoon, knife, and another spoon in that order. In the following shots the order changes to spoon, spoon, knife.
Continuity mistake: When Daniel and Julia visit the Past Lives Pavilion, they show everyone coming in to where the booths are in a single line. The PA announcement tells them to take the first available booth on the left, yet they all walk to the end of the row and THEN pick a booth.
Continuity mistake: When Fausto hands a tape from the back seat of the car to put on, he pulls it out and it is white. In the next shot when Demi Moore takes it, it is black.
Factual error: Deer are not repelled by the smell of human urine, and in fact it does not have "a" smell - it has many. The smell of human urine varies enormously based upon diet, health and environmental factors so that no wild animal could possibly be scared of them all. Even if Lou didn't know this (and everything about her character suggests she should), Doctor Stone would - he is a doctor, after all.
Continuity mistake: At the conference, when the President is announced, there is a wide shot of the crowd and you see a lot of people standing in the background against the wall. There are also several spotlights turned on. Then it cuts to the stage where Frank and the squad are walking. When it cuts back to the crowd all the people in the background are gone and the spotlights are switched off. The crowd reappears later and the spotlights are on again. (01:00:50)
Continuity mistake: There is no way the cow (a Hereford I think) could have given birth to that calf (a Jersey or something like that). [The mom is a mixed-breed BEEF cow, the calf a purebred Jersey DAIRY calf. An amazing feat of animal husbandry.]
Continuity mistake: When the Turtles first arrive on screen behind Keno, they leap over the boy to attack the thieves. Their order from left to right when they walk up is Mikey, Leo, Donny, then Raph. The very next shot shows them in the air, and the order is now Mikey, Donny, Leo, then Raph. Donny and Leo switched places between shots. (00:03:35)
Revealing mistake: Towards the end when Vanilla Ice jumps the motorcycle over Nick's car, you can see the ramp he used through the car's windshield.
Factual error: In one scene, Vada is showing off her mood ring. The movie is set in 1972 and mood rings were not created until 1975.
Revealing mistake: Gratuitous car explosions are nothing new in action films ... but this time the ambulance explodes in mid-air before even hitting anything. (00:32:22)