Seemingly made in a petri dish of cigarette ashes and watered-down lager, Robbie Williams’s vernacular comes straight from the British pub. Photo: Peter Pakvis/Redferns Last week, after a Los Angeles screening of the wildly premised biopic Better Man , I saw a number of viewers get out their phones and immediately Google the film’s protagonist. For the past two hours, they’d watched the real-life story of Robbie Williams — a British pop singer who’s sold over 75 million records — acted out by a