Continuity mistake: When Darren meets Judith he sets his beer down on the table. The label is facing to the far side of the table from Judith. When the camera goes back to a long shot the bottle has spun 90 degrees and the label is now facing the side of the table to Judith's right. (00:10:05)
Continuity mistake: In the scene where Jack Black dusts the chips off the chair for Amanda Peet. When she sits down she has a glass in her hand and then she sets it down, but in the next shot the glass is back in her hand. (00:16:30)
Factual error: At the beginning of the film when Wayne's mother has her water break at the 1972 Hot August Night concert, you see Neil singing in a silver spangly 90's shirt. As all true fans know (and the album cover shows during one of the house scenes), Neil was in a denim jacket and jeans with a lot more wild hair.
Revealing mistake: When Wayne has the mother raccoon on his head it is obviously a stuffed raccoon and not a live one. (00:05:25)
Continuity mistake: In the scene where they are about to kidnap Neil Diamond you see them backing up the truck to the backstage entrance. As they are backing up the truck you can clearly see that the door is open, but in the next shot when they are running in, the door is closed. (01:19:10)
Continuity mistake: When Darren is at the engagement party, he is standing between two guys. They cut to Wayne and JD, and the two guys are almost standing shoulder to shoulder and Darren has disappeared. (00:28:55)
Revealing mistake: Judith put 2 minutes and 30 second on the timer. The conversation between her and J.D. and Wayne was continuous. Their conversation until she beats Wayne in arm wrestling took 1 minute and 22 seconds. At this time we hear the timer go off and she says that time is up. There should still be 1 minute and 8 seconds before the timer goes off. (00:21:25)
Continuity mistake: Sandy throws Darren over the dock and you can see a bridge in the background but when they are on the shore the landscape is completely changed and there is no bridge. (00:49:50)
Continuity mistake: When Wayne shoots the mother racoon that attacks him the dart hits the left thigh and the animal is down. Later in the scene it's flipped over and it's shot in the right thigh. (00:05:40)
Continuity mistake: When Judith flips over in J.D.'s chair she landed on her back. The nachos and salsa on the tray had already landed on the ground prior to her rolling off of the cushion. She rolled off the cushion onto her back. There should not have been any salsa on the front of her shirt. (00:16:45)
Continuity mistake: When Judith is telling Darren that he is to no longer see J.D. and Wayne her hair changes from shot to shot. From the camera angle of the driver's side she has some hair hanging in front of her left ear. From the camera angle of the passenger's side the hair is tucked behind her ear. (00:18:00)
Continuity mistake: When Darren tells the guys that he is getting married, the beer in front of him has no foam at the top of the bottle. When the camera angle changes to where it is facing Darren, he moves the beer a little. It now has a lot of foam at the top of the bottle. (00:25:35)
Continuity mistake: In the jailbreak scene when the coach backs into Wayne and J.D's cell, you hear the back up alarm on Wayne's truck (J.D. & Wayne even mention it). Every other time the truck backs up there is no back up alarm, it is silent. (01:17:30)
