This new A&E documentary presents the story of Steve Rubell and Ian Schrager, who ran the famed celebrity-driven New York nightclub Studio 54. Today, the India Eisley site is the home of a Roundabout Theatre Broadway showcase, which presented such modern theatrical classics as the remakes of Cabaret and Assassins. Back then, it was more famous for D&D – not Dungeons and Dragons, but Drugs and Disco…