The Years Between (1946)

If the actors' lips were any stiffer in this British oldie they would run the risk of disappearing up their own fundaments.  Michael Redgrave and Valerie Hobson are happily married until he goes off to war and she is told that he is dead.  So she takes over his seat as an MP and is about to marry a good old brick when Michael turns up very much alive.  Things have changed in the four or five years and they both suffer from doubts, but in the end everyone does the right thing.  Occasionally one is glad that "they don't make them like that anymore".