Tucker and Dale vs. Evil (2010)

The best comedy of errors horror has produced. Two sweet-natured hillbillies fix up their vacation cabin while a group of college kids, raised on backwoods slashers, decide they must be killers, and every panicked attack ends in a gory accident that makes the pair look guiltier. Alan Tudyk and Tyler Labine are so likable that the deaths become cringe-funny, and the film still builds a real villain for the final stretch. Ideal for anyone who knows the slasher rules and enjoys seeing them flipped.