To what extent did George Orwell's involvement with British secret intelligence influence the writing of Nineteen Eighty-Four? How crucial was his friendship with David Astor, the millionaire owner of the Observer, with his background in intelligence and the Special Operations Executive, in the making of his great dystopian masterpiece? Has the role of Julia - who conducts a passionate, secret affair with anti-hero Winston Smith in Nineteen Eighty-Four...