Continuity mistake: When MAC realise what they have done, it shows a shot of the battlefield. When it shows them leaving to find their kids, everything on the battlefield has changed completely. Tanks have disappeared, planes have moved, etc. (01:06:05)
Continuity mistake: When Terrance and Phillip are standing alone, and the big group of soldiers run towards them, the General is standing in front of them and Shelia is standing in front of the General. Yet when it cuts to a closeup of the General talking, Shelia has disappeared. (01:07:05)
Continuity mistake: Operation "Human Shield" is supposed to "guard the tanks and planes too", and some of the black soldiers are tied to them. But once Chef jumps out of the way and says "Operation Human Shield my ass.." The others have miraculously been untied. (01:08:25)
Continuity mistake: After Stan joins back up with the rest of the kids, he finds Eric and Kyle on the battlefield as they are climbing out of the trench. In the first shot of Stan before he speaks, Wendy is clearly standing in front of Gregory on his right and Butters is visible in the second row behind Stan. In the next shot from the side, the kids shift so that they are standing further behind Stan than in the previous shot, Gregory is now standing in front of Wendy on her right and Butters has completely disappeared. In the third shot, a girl in a pink shirt, who was not visible before, is now directly behind Stan and Butters has reappeared. (01:09:37)
Continuity mistake: When Terrance and Phillip are about to get killed, They go to the left position. When Kyle says: "I'm not moving!", They both change to the right position. (01:10:05 - 01:10:28)
Continuity mistake: When Sheila kills Terrance and Phillip, Phillip falls to the ground twice. (01:11:10)
Continuity mistake: Sheila Broflovski shoots Philip in the middle of the "P", but when the blood starts flowing on the ground, the bullet hole is on the letter itself. (01:11:10)
Continuity mistake: Early in the film Satan is singing and has 4 fingers. When he asks Mr. Hat to join him in hell, he has 5. (01:11:20)
Continuity mistake: When Saddam says build a statue where Cartman is, Cartman, Stan and Kyle are standing next to each other. Cartman then calls Saddam a butt-f*cker and the V chip makes Cartman electrocute one of Satan's bats. After Cartman realizes he can electrocute Saddam, Kyle says "Yeah, do it Cartman". But Kyle is now a foot away from Cartman. (01:12:10)
Continuity mistake: When Satan says "I guess I'm destined to live in hell, alone", there is nothing on the rock in front of him. A few seconds later, Mr. Hat appears. (01:14:15)
Continuity mistake: Mr. Hat is taken to Hell by Satan, yet just a few moments later, he appears back on Mr. Garrisons hand. (01:14:20 - 01:16:20)
Factual error: In the song "It's Easy, mmmkay", Mr. Macky tells the children "With bitch drop the t 'cause 'bich' is Latin for generosity". Actually, there's no such word as 'bich' in the Latin language (the most common translation of generosity is 'magnanimitas').
Continuity mistake: The little sun awning over the roof of Tom's Rhinoplasty is grey in some scenes, and brown in others. The actual colour of the building itself changes slightly during the course of the film.
Continuity mistake: During the briefing of the American soldiers before the war with the Canadians, watch the background whenever we cut back to the big-general. The soldiers change positions on a fairly regular basis.
Continuity mistake: In the cartoon series, Stan's house has a cellar at the side, but throughout the film, no cellar is visible.
Audio problem: At the end of the film, When all the people from South Park are singing: "Mountain Town Reprise", If you look closely while the camera pans away from them... For a split-frame, Stan's mouth disappears then reappears.
Continuity mistake: In the scene where they go to the pond after watching the movie, Wendy and her boyfriend are not on the ice, but in the another shot shortly after she skates up to Stan.
Continuity mistake: Throughout the movie, Cartman's electric shock due to the V chip changes from Cartman being shocked in the middle of a swear to Cartman being shocked at the end of a swear.
Continuity mistake: When the boys are in the lunch line and Stan is singing about Wendy, you can see that the "Terrance and Phillip" T-shirts that Stan and Kyle are wearing are mirror images of how they should appear, with the "T&P" written backwards. Also, Kyle's shirt design changes between shots.
Continuity mistake: In the scene when they have just found out that America is at war, there's a long shot of the playground, a red ball is just kicked behind Stan, Kyle and Cartman. Then in the close-up shot, the red ball has disappeared.
Chosen answer: They don't believe him, so they're making a sappy joke about him "still being here all around us."
Captain Defenestrator