Disappointing effort from Rob Zombie based around a simplistic premise: it's Halloween and a group of travelling carnies are kidnapped and forced to play a game called 31, which requires them to survive a night being pursued by a group of psychotic clowns. "31" is a simple torture porn re-tread, with few redeeming features, no interesting characters, no plot development and no atmosphere. There is the occasional clever image and clever bit of composition but that can't get over the horrible quick cut and shaky-cam dynamics. On the whole a tired and lacklustre affair with nothing new or even vaguely interesting to offer. ( )