Shifting into the quasi-classical:

The soundtrack for Kieslowski's "Red" is very, very beautiful, all of it composed by Preizner, supposedly by an 18th century composer -- the main theme is a Ravel like Bolero, completely compelling. I am not sure that there is a record of the music from "The Double Life of Veronique" -- the singing by the woman dubbing for Irene Jacob appears and reappears in Kieslowski's movies. The famous "Symphony for Europe" in "Blue" is a disaster.

The music for "Brideshead Revisited" withstands repeated listenings, certainly good for backgrounds.

Real classical: The music from "Un Coeur en Hiver" (released as a soundtrack album -- Ravel, Debussy quartets) is excellent.

There is a brilliant use of music (Schubert) in "Minority Report" -- John Williams at work (most of whose stuff I cannot abide).

Best movie album of all time? Easy. "A Hard Day's Night".

yours, Peter T.