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 Sandy throws Silverman over the board walk and she jumps in, her wimple is floating next to her when her head pops up, but when they show a close up of Sandy and Silverman in the water her hat is gone. (00:50:10)
Continuity mistake: When Silverman and the nun are on the beach after she throws him over, her legs are covered in sand but when they get up she is completely clean. (00:50:55)
Continuity mistake: During Darren's date with Sandy, he had electrodes attached to his nipples to help him forget about Judith. But they soon catch fire and burn holes in his shirt. Later, when you look at his pockets, you can see that his pockets are burned, but the shirt actually touching him is still intact. (01:03:15)
Revealing mistake: In the bar scene on his date with Sandy, after Silverman's shirt burns from the electrodes he spills a drink on it to douse the flames. As the bar catches fire watch as the flames form a perfectly straight line along the entire bar. If a fire is started from spilled drinks wouldn't it only be contained to the area of the spill? (01:03:30)
Continuity mistake: In the scene where Wayne is feeding the Arby's sandwich to Judith and he gets sauce on her chest, look at Judith's shirt. In the close up shots it's a solid bluish color, but in interior shots it's a blue color with little diamond shapes on it. (01:05:50)
Continuity mistake: When Silverman is making out with Sandy on the couch, her shirt is on the pillow on the couch. From a different angle it is behind the pillow, and the next shot, it is back on top of the pillow. (01:13:40)
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)
Revealing mistake: In the jailbreak scene when the coach backs into the Wayne and J.D.'s cell, cinder blocks fall everywhere. As Wayne and J.D. climb into the truck, you can actually see J.D. step on one of the blocks and break it in half. That proves that they were only made out of simple cardboard. (01:17:40)
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)
Revealing mistake: After they kidnap Neil, they are driving to stop the wedding, as they are driving down the road, you can see out the front window that the truck pulls up to a stop light. They cut to Neil and the truck is still moving, then they cut back to the group and they road is clear. Traffic lights don't cycle that fast. (01:20:30)
Continuity mistake: In the scene of the wedding, all the seats are taken, and then Judith picks up an empty chair and smashes it over Wayne's head. (01:23:15)
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.
