Audio problem: When Jack digs for the statue in the puddle, and he hits it, it makes a sound like iron against ceramics, but the bunny statue is wrapped in hay and cloth. The wrapping is so thick that the spade would not be able to touch the statue, so it would make no sound at all when he hit it with the spade.
Audio problem: When the geek and the prom queen are cruising down the road in the Rolls Royce convertible, the drunken prom queen says to the geek "Looks like rain, better put the top up." However, her mouth movements do not match the words.
Audio problem: When Axel is first arrested you hear Axel talking to the police officers as they pull up to the station and you hear the police officer talking back to him as he gets out of the car but none of their lips are moving.
Audio problem: In the scene where Otto is sitting down looking at the photo of the dead aliens his boss walks out and says keep making me money kid, Otto says something back but his mouth never moves.
Audio problem: After leaving Bloomingdales, Allen and Madison start talking. Allen says to her "Just begin when you were born and finish up right when you blew up the TV's." His mouth doesn't move at all when this is said. (00:41:15)
Audio problem: When Mahoney and Lt Harris are driving in the car on the dirt road and Harris tells Mahoney to run behind the car, all of the conversation up until that point is done with neither character moving their mouths.
Audio problem: When Toxie is chasing Julie, Julie runs into a room, locks the door and puts a plank of wood to secure the door. As she does, she cries and whimpers, yet her mouth doesn't move.
Audio problem: When the nerds have their first party to impress the Tri-Lams, the first song that's playing when they are all sitting around does not match the equalizer on the stereo lighting wise.
Audio problem: When Kate is behind the bar, and the Gremlins are drinking beer and smoking, Kate says "Just don't bite me." Her mouth doesn't move at all when this is heard. (01:11:00)
Audio problem: At the party when the dancer is approaching Rudy some of his screams don't match up to his mouth.
Audio problem: When the Archbishop says "How are you, Lenny?" to the Mayor in his office, his lips don't match what he is saying. (01:15:55)
Audio problem: When Nigel holds Linda back after computing class, Lucy mutters "Oh, shoot", but her mouth is saying "Oh, shit."
Audio problem: During the McClure Whiplash fight near the end the sound of two of their punches happen before they even land.
Audio problem: Inoue drags a hysterically-laughing Yoshiko back to Aoki's car after they have sex, and he gets his pants wet. Once she is in the car, she is still heard laughing hysterically, but her mouth isn't open far enough for laughs that loud to be coming out. The laughs were likely dubbed in. (01:11:58)