The fourth in the Turn Of Fate short television movies, Encounter On A Second-Class Coach (top right image) is from 1957.
Jane Powell plays both Julie Kingstone and Hilde Frenz, who meet on a train from East Germany to West Germany.
Frenz locks Kingstone in a station toilet when they take a break and she’s stranded.
It seems like all is lost but then it works out with the East German reaching the safety of the west.
Julie Kingstone’s story is believed by the authorities and plans are made for her to leave as well.
Movie pages here.