IN the last fifty years, British drama has flourished and British theatre has been in an almost constant state of panic. On the one hand, it has been a period which has seen the arrival of ground-breaking plays from John Osborne's Look Back In Anger to Mark Ravenhill's Shopping & ****ing: of major playwrights like Harold Pinter, Edward Bond, Tom Stoppard, Caryl Churchill, David Hare: and of landmark productions like Peter Brook's Marat/Sade for the Royal Shakespeare Company and Peter ...