South Park: Bigger, Longer & Uncut 1999

When four boys in South Park Stan Marsh, Kyle and his stepbrother Ike Broflovski, Eric Cartman, and Kenny McCormick sees an R-rated movie featuring Canadians "Terrance & Phillip: Asses of Fire", they are pronounced "corrupted", and Kyles mom Sheila with the rest of the parents pressure the United States to wage war against Canada for World War 3! Its all up to Stan, Kyle and Cartman to save Terrence and Phillip before Satan and his lover Saddam Hussein from Hell rules the world and itll be the end of the whole world.