The Seventh Survivor

The Seventh Survivor is a 1941 British, blackandwhite, spy, war film, directed by Leslie S. Hiscott and starring Felix Aylmer, Jane Carr, Wally Patch, Linden Travers, Austin Trevor, Frank Pettingell, Ronald Shiner as Ernie and Martita Hunt. It was produced by British National Films and Shaftesbury Films.

Source: Wikipedia