Hilarious, hi-concept, low brow body swapping tomfoolery; 'The Change Up' would have been an unremarkable, perhaps unbearable, addition to this tried and tested formula, were it not elevated beyond its premise by the comedic genius of Justin Bateman and the wry humour of Ryan Reynolds. The plot barely warrants repetition but it's your classic life-swap scenario: stressed family man Bateman wants to change over with womanising, pot smoking dosser Reynolds, it happens, hilarity ensues. 'The Change Up' will only appeal to Bateman and Reynolds fans, fortunately, I'm a big fan of both and found their performances and imitations of each other, spot on, with plenty of laugh out loud scenes and a plethora of witty one-liners. My only concern was the utter contempt the team behind this movie seem to have for their female characters; relegating the entire gender into a bizarre narrative limbo whereby every woman is either sexually grotesque, incompetent, annoying or the kind of slut (played here by Olivia Wilde) that only exists in the minds of misogynistic Hollywood hacks. Still, as long as the jokes work and its ridiculous, 120 minute running time doesn't draw attention to itself, what do I care? 'The Change Up' is good for what it is and like its sister film 'Bad Teacher', does opt for quite a few cheap laughs and wholly unnecessary, though mercifully infrequent, concessions to the stupid, gross-out humour crowd. A lot funnier than I thought it would be, but only Bateman-Reynolds fans need risk it.