Watch the first BLACK MASS teaser trailer!

The Warner Bros. film, directed by Scott Cooper (Out of the Furnace, Crazy Heart), stars Johnny Depp, Benedict Cumberbatch, Dakota Johnson, Joel Edgerton, Juno Temple, Kevin Bacon, Adam Scott, Peter Sarsgaard, David Harbour, and Corey Stoll.

BLACK MASS will be released in theaters on September 18.

John Connolly and James “Whitey” Bulger grew up together on the streets of South Boston. Decades later, in the late 1970s, they would meet again. By then, Connolly was a major figure in the FBI’s Boston office and Whitey had become godfather of the Irish Mob. What happened between them – a dirty deal to trade secrets and take down Boston’s Italian Mafia in the process – would spiral out of control, leading to murders, drug dealing, racketeering indictments, and, ultimately, to Bulger making the FBI’s Ten Most Wanted List.