Matthew Sweet discusses the early 20th century actress and suffragette Sybil Thorndike with her biographer Jonathan Croall. Throughout the First World War, Thorndike led the pioneering Old Vic company and became a household name with Saint Joan, a play that George Bernard Shaw wrote for her. She was also an ardent feminist, socialist and pacifist, fighting against Apartheid in South Africa and actively helping the Republican cause during the Spanish Civil War.