Slacker composer Peter has been basking in the slightly demeaning light of his celebrity girlfriend, Sarah, for five good time years, so when she finally, and let's be frank inevitably, dumps him, Peter goes into free fall. Will Sarah ever take him back? Will he find new love? And what chance does he stand against his ex's new rock star boyfriend anyway. "Forgetting Sarah Marshall" is a good natured and likeable comedy, though the only real flashes of ‘nailed it' wit come almost exclusively from Russell Brand being, well… Russell Brand.