A so-called "normal" man pretends to be developmentally challenged in order to win the Special Olympics. Could this be the most offensive comedy premise ever? Perhaps, but the movie itself is surprisingly sweet and unexpectedly positive. After toiling away for two years at a job he hates, office clerk Steve (Johnny Knoxville) finally receives a promotion, but his first executive task is to fire Stavi (Luis Avalos), the kindly widowed janitor. As a consolation, Steve hires Stavi to mow the lawn at his apartment complex and even offers him health benefits — a perk Steve hasn't quite yet managed to swing when Stavi severs three fingers in the mower. Faced with having to...