Audio problem: When Cher and Tai are at the party and Travis comes up to them he has 2 cups of some kind of drink and all of a sudden you hear a sound that is supposed to be something spilling. I guess they assumed that it was supposed to be the beer spilling on Cher's shoes. Well as you can see nothing falls/spills from the cup, it is just sound effects.
Audio problem: In the DVD version, before Brodie says to TS, "I suddenly want something very bad to happen to you," you can hear Kevin Smith or someone say "Action."
Audio problem: In the scene where Lucy first enters Peter's hospital room, you can hear a respirator, and he is not hooked up to one. Also, the respirator noise is much faster than an unconscious human should be breathing.
Audio problem: When the girls enter the fortune-tellers home, the fortune-teller says "I know," however her mouth says something else. (00:48:35)
Audio problem: When the grey mare has escaped and Lancelot begins chasing her, watch her footfalls and listen to the hoofbeats - the two are totally out of sync.
Audio problem: All Air Canada employees speak with a very pronounced French accent rather than the expected French-Canadian accent.
Audio problem: When the Bat Exterminator is pointing at the book in the attic, he says "Some kid said she saw a bunch of those back in the 60's." His mouth is visible in the screen, however it doesn't move at all. (00:18:50)
Audio problem: The scene where Daryl Hannah and Kevin Pollack are arguing in the middle of the crowd doing the chicken dance, the timing of the music is not matched with where the crowd is in the dance.
Audio problem: On the video version, in the barbecue scene, the band starts playing the slow song. The camera is on Eddie and his daughter and they are dancing. If you look closely, the male singer in the background is shown standing on stage and just holding his guitar and not singing, even though the vocals can be heard. In a later shot, he is actually singing. Still later in the scene, he is shown just standing on stage and not singing.