Former Vice President Dick Cheney (Alex Brandon/AP)

The network bought this documentary from R.J. Cutler. He’s the guy who made the docus “The War Room,” about Bill Clinton’s 1992 presidential campaign, and “A Perfect Candidate,” about the 1994 Virginia Senate campaign of Oliver North. (His credits also include the 2009 docu “The September Issue,” which followed Vogue’s magazine staff and editor-in-chief Anna Wintour as they produced the September 2007 issue.)

“Cheney is arguably the most powerful non-president of the last whatever — 50 years,” Nevins said.

“We’re not going to do a ton” of documentaries, Nevins said, because “I’m into renewable resources — I’m not into one-offs.” So, he’s going to roll out documentaries slowly and “if it works, do some more.”

Showtime has already announced that it’s working on a docu about the life of infamous rap-label mogul Suge Knight, being directed by Antoine Fuqua (“Training Day”). Nevins also mentioned that Showtime is developing a docu about Richard Pryor.