John Tiffany: 'You could feel the buzz'
John Tiffany turns out to be such an ebulliently Puck-ish figure that halfway through our time together I decide to take a risk and tell him the truth: that I didn't want to see his production of Once when offered a much sought-after ticket in New York last year. It was grisly to think of the jazz-hands Broadway musical treatment being meted out to a charmingly off-beat, low-budget Irish film about the unlikely frien…