Prison flick meets musical comedy in this oddball conflagration of genres, a British feel-good flick that just so happens to be the follow-up film director Peter Cattaneo made after The Full Monty. Four years went by, Cattaneo's name became all but forgotten, and films like this became Cattaneo's legacy. (Four years after Lucky Break, Cattaneo is finally shooting his next film.) The lovely Olivia Williams shoulders a lot of love here as the object of one prisoner's sights -- at least when he isn't doing double duty as a showman in the warden's play and planning his big escape. Lively enough to keep you paying attention through to the end, even if the whole affair is a bit absurdly silly.