A highly successful lawyer Dave Lockwood (Jason Bateman) on the verge of making partner after closing a key merger deal reluctantly agrees to go watch a game with his childhood buddy Mitch Planko (Ryan Reynolds), school dropout and up-and-coming light porn actor. Now following separate path one leads a family life alongside Jamie (Leslie Mann) and a trio of dastardly children (including demonic baby twins and a bum-whooping ballerina). Meanwhile Mitch fails to follow through on anything in his life - the eternal quitter now entertaining women through the easiest job possible. After the drunken night both of them declare their admiration of the other's life while peeing into a fountain presided over by a stony statue of the Greek goddess Metis. The following morning - it's "Freaky Friday" on crack...

Inexplicably construed around a vulgarly obscene script lacking any of the gutsy wisecracking charm of "Role Models", but all of the toilet humour prevalent in the lowest grade comedies. Unmistakenly and fortunately R-rated it features tirades of miscued crassness with scenes of poop farting munchkins, extremely irresponsible parenting and unimaginative build-up. As if led by the misguided belief that funny equals farts and profane language the real laughs are scarce both in quantity as well as quality. The main benefit of "The Change Up" derives from the undeniable lure of Bateman and Reynolds forced to play against character and the awkwardness it entails. This unequivocally does lead to some endearing scenes shouldered on the characters allure and a well-deserved conclusion, but the overall lewdness over laughs dilutes any real viewing satisfaction.