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.
Directed byCharles Frend
Written byLeslie Arliss, John Dighton, Angus MacPhail, J.B. Priestley (story)
CountryUK
Runtime87 min
On screen
Tommy Trinder
Constance Cummings
Clifford Evans
Robert Morley