US Title : "Indiscretion of an American Wife" (1953).
This is such a contained, focused film, and demands so much of its two actors, every little nuance matters in a kind of exciting dramatic way. The closest thing this compares to, as two lovers or would be lovers talk in a train station, is Brief Encounter (1945), and that's a masterpiece of acting and cinema both.
Here, with Montgomery Clift and Jennifer Jones, it comes close. I found the slowness of it magical, and the filming, in the ultra modern station, very beautiful.
IMDB Review: https://www.imdb.com/review/rw2290642/?ref_=tturv_perm_1
