Documentary telling the real story of the Cambridge Spies - subject of the drama series A Spy Among Friends.
Director: Nick Tanner
Cast:Roger Allam , Helen Fry , David Haig-Thomas , Harold Rickett , Ben Macintyre , Annie Machon , Adolf Hitler , Mikhail Petrovich Lyubimov , Miranda Carter , Roland Philipps , Tom Bower , James M. Olson , Dita Gjuraj , Joseph Stalin , J. Edgar Hoover , Kim Philby , Guy Burgess , Anthony Blunt