Bitcoin-only director Richard James’ documentary on the recent history of inflation, “Hard Money,” uses stock images and anonymous narrators to weave the film. One of them qualifies the tweaking of the money supply as “the greatest con in human history.” Another one compares the Fed to the Wizard of Oz. The voices are familiar. You feel like you heard some of these clips before. When the credits roll, you realize the narrators were the creme of the cream of the Bitcoin thinkers.