Last month, “Black Mass,” the biopic starring a blue-eyed Johnny Depp as the notorious Boston gangster Whitey Bulger, hit theaters to mixed acclaim. “Black Mass” is not to be confused with “The Departed,” Martin Scorsese’s 2003 cops-and-robbers opus loosely based on Whitey. Nor is it to be confused with “Whitey: United States of America v. […]