Carol Reed - Night Train to Munich (1940)

During the Nazi invasion of 1939, prominent Czech scientist Dr. Axel Bomasch (James Harcourt) and his adult daughter Anna Bomasch (Margaret Lockwood) are captured. Despite the senior Bomasch having escaped to England before the Germans invaded Czechia, the Nazis were able to discover his hiding location in part due to an elaborate ruse using Anna, who, at the time, was imprisoned in a concentration camp, and Karl Marsen (Paul Henreid), a Gestapo officer posing as a fellow camp prisoner. Dickie Randall (Sir Rex Harrison), an English officer using the code name "Gus Bennett", decides to mount his own rescue of the Bomasches posing as a German army Major. Anna feels she has no other choice but to go along with whatever Randall tells her in an effort to escape from the Nazis, despite she not fully trusting him due to his seemingly cavalier attitude. Randall and the Bomasches ability to escape may be placed into jeopardy by two Englishmen travelling on the same night train to Munich.