Night Train to Munich (1940)
A 1940 British thriller film. It was directed by Carol Reed an starring Rex Harrison, Margaret Lockwood and Paul Henreid
When the Germans march into Prague, a scientist who is working on a new process for armour-plating, Dr. Bomasch (James Harcourt), is flown to England. His daughter Anna (Margaret Lockwood), however, is arrested and sent to a concentration camp.
There, she is befriended by a fellow Czech
prisoner named Karl Marsen (Paul Henreid).