Martin McDonagh: 'I've accepted that theatre is never going to be edgy in the way I want it to be'
His Irish plays and punk spirit made him the most talked-about dramatist of his generation. As his new play, Hangmen, opens in London, Martin McDonagh talks about his roots, maturity and his uneasy relationship with the theatre worldWhen I last interviewed Martin McDonagh, back in 2001, he mentioned that he had just started working on a play set in London "in that dark time just before and after they abolished hangin…