Another week, another zombie movie. Yet — lord, luv a duck! — in the second half of this one I found myself lurching forwards and rocking with laughter. Two brothers (Harry Treadaway and Rasmus Hardiker, both charming) plan to rob a bank so their grandpa can keep his old people’s home going. They enlist the help of their cousin, a sad-sack friend and the local headcase. It seems like the latter’s gung-ho mania will be their biggest problem. But no. There are members of the undead in town.