Andy Tennant was once a very in-demand director. He collected a few hits during his career, most notably in the romantic comedy arena, helping to bring 2005’s “Hitch” and 2002’s “Sweet Home Alabama” to box office highs. Primarily known as the helmer of fluff, Tennant looks to get a little dark with “Unit 234,” which features very few warm emotions and candied scenes of comedy. It’s a thriller from screenwriter Derek Steiner, who imagines a long night of pursuit and violence involving desperate people sneaking around a storage facility, mixing victims and aggressors while attempting to stay one step ahead of viewers. Tennant isn’t known for style, and his feel for pacing is off in the film, but there’s a level of payoff worth sticking around for. “Unit 234” actually makes its way to refreshingly dark final act, and the actors assembled mostly understand what’s required of them, getting the offering to moments of misery that are more compelling than the usual in chases and near-misses. Read the rest at Blu-ray.com