More tales from the Studio 54 era: a look at the career and influence of 70s designer Roy Halston, to be watched, perhaps, as a double bill with the recent documentary on Vidal Sassoon. Like Sassoon, Halston translated his fashion-world kudos into multiple licensing deals; unlike Sassoon, Halston managed to lose rights to his own brand, and become a victim of the celebrity culture he was immersed in. Director/presenter Whitney Sudler-Smith, a disarmingly incompetent screen presence, meets lots of colourful former Halston acolytes – the man himself remains something of a cipher. But this is an interesting slice of pop history, nonetheless.