Juliette Ou La Clef Des Songes(1951) -

Though it was initially a "mal aimé" (unloved) film, Carné himself considered it one of his favorites, likening it to a "frail child" who needed the most maternal love. Today, it is praised for its atmospheric forests and its lyrical, almost operatic quality—so much so that it inspired an opera by Bohuslav Martinů.

The village where everyone has forgotten their past serves as a metaphor for the ephemeral nature of love and identity. Juliette ou La clef des songes(1951)

You can find more detailed reviews and historical context on IMDb or Wikipedia . Juliette ou La clef des songes (1951) - IMDb Though it was initially a "mal aimé" (unloved)