Continuity mistake: There is a scene where the FBI show up to the North American Marlon Brando Look Alikes meeting by mistake. However, during a close up of the leader's (the geneticist's) face, you can see the bottom of the banner actually says "Man Boy Love", as in the other NAMBLA. (00:16:20)
Continuity mistake: When Michael Jackson returns to Purgatory, keep an eye on Patrick Swayze. He is sitting on the left hand side of the front row. He's wearing the exact same black shirt and pants he was wearing in Dirty Dancing including the same hairstyle. About 2 shots later, his hairstyle has changed and he is now wearing a black fleece with a grey shirt and a lighter grey pants. Another 2 shots later, he is now back to the Dirty Dancing hairstyle as well as the Dirty Dancing clothes. Then when the Purgatory plane leaves, he is now wearing the other black fleece and grey shirt and lighter grey pants. Then when the Purgatory plane lands in Hell and the flight attendant says "All right, everyone, I'd like to be the first to welcome you to the gates of Hell. Unfortunately, Hell is a tow-in gate" and everyone shouts "AWWWW!", we can see Patrick Swayze has now gone back to the Dirty Dancing hairstyle and clothes. (00:21:05)Casual Person
Other mistake: In "Broadway Bro Down," when Shelly and Larry are playing Settlers of Catan, Shelly tells him, "And I got a victory point for the most roads connecting settlements." In the game, there's a two victory point bonus for the longest road, but no points for getting the most roads. (00:14:10)Captain Defenestrator
Continuity mistake: In the scene where we first see Kyle as a tall black kid, when Kyle's dad says " Come on Kyle we have to get going" And Kyle says "Alright dad", when kyle runs to his dad, we see his basketball jersey change from an orange 4 jersey to a blue "all state 4 Colorado" jersey. (00:14:20)Nail20619
Plot hole: Stan's grandad submits the video of Kenny being hit by the train. This gets through into the final, which shocks Stan and Kyle. But shortly the clip would have had to get through to the final by another episode, so shortly Stan and Kyle wouldn't have been so surprised. The video couldn't have been submitted before, as Stans video was submitted first.
Character mistake: When Cartman goes to wrap the chain around the locker room door, there are two signs that read 'Boy's Locker Room', one on the wall pointing to the locker room and one on the locker room door. The sign has been written incorrectly; the word "boys" has been written with an apostrophe after the Y, spelling out the word "boy's." In this context, the word is supposed to be a plural, not a possessive, so the word "boy's" should just be "boys." If it were written as a plural possessive, the sign would read "boys'."Casual Person
Continuity mistake: When Cartman accidentally sets Fluffy the Cat on fire, it jumps up into the air and knocks over a picture and it falls onto the floor. When Stan, Kyle, Cartman's mom and Wendy walk into the living room in the next shot, the picture has disappeared. (00:17:45)Casual Person