Céleste

Céleste is a 1980 West German film by Percy Adlon about the life of the French writer Marcel Proust as he lay in his bed from 1912 to 1922; the story is told through the eyes of his real life maid, Céleste Albaret. She waited decades before writing her own book about the experience which was adapted for the screen by Percy Adlon.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.