With “Abattoir,” director Darren Lynn Bousman takes a clever idea and a relatively talented cast and cobbles together one of the most baffling and ineffective horror films of the year. The dialogue isn’t just awkward and unbelievable—it’s as if it was written by a teenager raised on only bad horror movies. The pacing isn’t just clunky, it’s edited in a way that almost feels designed to be distracting. The performances are uniformly bad, even from actors who normally do good work. It’s one of those movies that's so inept on every level you almost want to recommend it. If you operate under the belief that you can learn as much, maybe even more, from bad movies as you can from good ones, this one is a master class in what not to do.