Wartime propaganda piece reporting on the success of the economic blockade of Germany in the early years of the war.
Director
Charles Frend
Leslie Banks
Taylor
Michael Redgrave
Russian
Will Hay
Skipper
John Mills
Tom
Bernard Miles
Royal Navy Mate
Michael Rennie
George
Frank Cellier
Schneider
Robert Morley
Von Geiselbrecht
Alfred Drayton
Direktor
Marius Goring
German Propaganda Officer
Austin Trevor
U-boat Captain
Albert Lieven
Gunter
John Stuart
Royal Navy: Naval Officer
Morland Graham
Civil Service
GB
