There were few true giants in 20th century theatre, but No l Coward was indisputably one of them. Playwright, director, actor, he defined all those roles. But the stage could never contain his many talents, or indeed, his plays. Many of the earlier ones were adapted for the screen, including Easy Virtue, The Vortex, Private Lives, Design for Living, and Cavalcade. In the forties he took more direct control...