In 1970s South Boston, FBI Agent John Connolly persuades Irish mobster James “Whitey” Bulger to collaborate with the FBI in order to eliminate a common enemy: the Italian mob. The drama tells the story of this unholy alliance, which spiraled out of control, allowing Whitey to evade law enforcement, consolidate power and become one of the most ruthless and dangerous gangsters in Boston history. Vitals: Director: Scott Cooper. Stars: Johnny Depp, Joel Edgerton, Benedict Cumberbatch, Rory Cochrane, Jesse Plemons, Kevin Bacon. 2015, CC, MPAA rating: R, 122 min., Drama, Box office gross: $62.575 million, Warner. Extras: “Johnny Depp: Becoming Whitey Bulger” featurette. Blu-ray adds “The Manhunt for Whitey Bulger,” “Black Mass: Deepest Cover, Darkest Crime.”