Despite it's generic approach to it's story, Black Mass is still a great crime drama that's tense, thrilling and chilling. Johnny Depp gives an incredible lead performance and one of the best performances of his career. Joel Edgerton, Benedict Cumberbatch, Kevin Bacon and Corey Stoll all give great supporting performances. Scott Cooper's direction is also great, it's well filmed and extremely well paced. The music by Tom Holkenborg and the soundtrack are both good.