New films on DVD include three stories based on real life events.  “Black Mass” (Johnny Depp) tells about the FBI’s collaboration with a mob killer. “Steve Jobs” (Michael Fassbender) covers a critical 14 years in the life of Apple’s founder.   “Deadwood” (Ian McShane, Timothy Oliphant)” re-creates the early days of the gold rush town where Wild Bill Hickok meet his doom.  This series (3 seasons) is brilliantly done (be forewarned, th0, the language is salty).