Clemency features excellent acting from Alfre Woodard as a warden and a magnificent performance by Aldis Hodge as a convicted cop killer sentenced to death. But the film is a depressing prison drama frozen by unbearably slow editing. The running time of less than two hours feels like three hours. The initial scenes of an execution are spectacular in their intensity. Unfortunately, Alfre Woodard is directed in such a stoic fashion it is impossible to empathize with her character. When Aldis Hodge appears on screen, there is an emotional core that periodically brings the film to life. This is an actor to watch. This is a hard film to recommend despite the fine acting.