Spies of the Air

Spies of the Air is a 1939 British adventure film directed by David MacDonald and based on the play Official Secret by Jeffrey Dell. The film stars Barry K. Barnes, Roger Livesey, Basil Radford, Edward Ashley and Felix Aylmer. Spies of the Air involves espionage in the period just before the outbreak of war in Europe that spawned a number of similar propaganda films linking aeronautics and spies. Films in both Great Britain and the United States centred on "... spies and fifth columnists (as) the staple diet of films made during the first year of the war."