I also read the playscript adapted by Harold Pinter and Di Trevis from his The Proust Screenplay called Remembrance Of Things Past.
The playscript has all the problems of the screenplay and worse, i.e. it tries to cover too much of the novel and becomes even more choppy. There are obvious short cuts in dialogue that make those-who-know-the-novel blush. Furthermore the playscript only quotes Proust in the third person of his characters; it ignores the voice that that he is famous for: his older reflective Narrator in the first person.
Because it was a produced play (in 2000 at the Cottesloe Theatre at the Royal National Theatre) it necessarily ignores the voice that Proust is remembered for; there is no space for his older Narrator except in a chorus like the Greek (Aeschylus, etc.) tragedies or possibly in the more modern musicals.