Black Mass is a 2015 American biographical crime drama film directed by Scott Cooper and written by Mark Mallouk and Jez Butterworth, based on the 2001 book Black Mass: The True Story of an Unholy Alliance Between the FBI and the Irish Mob by Dick Lehr and Gerard O’Neill. The film has an ensemble cast including Johnny Depp, Joel Edgerton, Benedict Cumberbatch, Kevin Bacon, Jesse Plemons, Peter Sarsgaard, Rory Cochrane, Adam Scott, Dakota Johnson, and Corey Stoll.
The film follows the criminal career of infamous American mobster Whitey Bulger (Depp). Principal photography of the film began on May 19, 2014 in Boston, and wrapped on August 1, 2014. It had its world premiere at the 72nd Venice International Film Festival. The film was released by Warner Bros. worldwide on September 18, 2015.
In 1975, James “Whitey” Bulger (Johnny Depp), leader of the Winter Hill Gang, controls most organized crime within South Boston, along with his right-hand man Stephen Flemmi (Rory Cochrane), newcomer Kevin Weeks (Jesse Plemons), and callous hitman Johnny Martorano (W. Earl Brown). Bulger lives with his common-law wife Lindsey Cyr (Dakota Johnson) and their young son Douglas (Luke Ryan).
Bulger’s supremacy is challenged by the North End Angiulo Brothers, a rival gang, part of the New England Mafia family. FBI agent John Connolly (Joel Edgerton) returns to the area – he grew up in South Boston as a friend of Whitey and his brother William “Billy” Bulger (Benedict Cumberbatch), the Massachusetts Senate President. Connolly tries infiltrating the Angiulo Brothers, and attempts to get Whitey to work with the FBI. Although Whitey hates the idea of being a rat, he understands the protection he would have for himself, his gang, and his family. Douglas suffers from Reye syndrome, leading a devastated Lindsey to remove him from life support over Whitey’s furious objections. When the Angiulo Brothers murder a Winter Hill member, Whitey becomes an informant.
Although Connolly is supported by his co-worker John Morris (David Harbour), their boss, Charles McGuire (Kevin Bacon), is suspicious. Whitey increasingly exploits the FBI informant relationship, using Connolly’s “protection” as a cover for his crimes. Connolly demands information on the Angiulos’ racketeering locations. Finally, Whitey gets pictures of the rival gang’s hideouts, allowing the FBI to wiretap the Angiulos. The FBI arrests them, thus eliminating underground opposition to Whitey’s power. Connolly, blinded by his past, grows closer to Whitey and the gang, even inviting them to his house for a cookout. His wife, Marianne (Julianne Nicholson), sees negative changes in her husband as his agent-informant relationship with Whitey grows.
Source Page – Wikipedia