South Park: Bigger, Longer & Uncut

Stan Marsh, Kenny McCormick, Kyle Broflovski, and Eric Cartman go to a cinema to see Terrance and Phillip: Asses of Fire, which stars the boys' favorite Canadian comedy duo Terrance and Phillip. However, the boys are refused entry due to the film being R-rated, so they pay a homeless man to accompany them.

The following day, the boys begin swearing in class, and are sent to Mr. Mackey, the school counselor, who informs their mothers. Later, the boys see the film again, and Kenny bets Cartman $100 that he can set his fart on fire like Terrance in the film. Kenny immolates himself and ultimately dies, leading to Stan, Kyle, and Cartman being grounded. Kenny is sent to Hell, where he is tormented by Satan and Saddam Hussein. Back on Earth, the parents of South Park organize a boycott against Canada and Terrance and Phillip, which is led by Kyle's mother, Sheila. Terrance and Phillip are arrested as war criminals. When the United States refuses to release the duo, Canada retaliates by bombing the residence of the Baldwin brothers. Read more on Wikipedia.