Based on the true story of Melbourne Johns, an aircraft factory foreman sent to France to prevent the Nazis getting hold of some vital equipment.
Clifford Evans
as Fred Carrick
Constance Cummings
as Anne Stafford
Tommy Trinder
as Tommy Hoskins
Gordon Jackson
as Alastair 'Jock' MacFarlan, 19th Fusillers
Robert Morley
as Mayor Coutare of Bivary
Owen Reynolds
as Collins, Burns & Fawcett Works Manager
Bill Blewitt
as Aircraft Spotter on Works Roof
Charles Victor
as Aircraft Spotter
John Williams
as 'English' Army Captain
Anthony Ainley
as Boy
Ronald Adam
as Sir Charles Fawcett, Managing Director
Anita Palacine
as La Tour Barmaid
