Phyllida Lloyd webchat " post your questions now
The director of Mamma Mia!, The Iron Lady and the forthcoming Tina Turner musical will join us for a webchat at 1pm GMT on Tuesday 13 March 1.55pm GMT Not many directors have done Wagner's Ring cycle, a hit jukebox musical and had an Oscar-winning film. But we've come to expect the unexpected from the phenomenal Phyllida Lloyd. She has, says Fiona Shaw, an "unparalleled gift at playfulness mixed with serious profound…