Interesting to get the perspective of someone in the sound business. What else is on your list of impressive soundtracks Sir Terrence?
Aside from the ones already mentioned, here are just a few I can name off the top of my noggin.
Apocalypse Now - Walter Murch who I consider one of the best re-recording mixers ever (some of the other best re-recording mixers have worked under his wing like Randy Thom) created this sound track, and it was consider tour de force when it was first created in the 70's. It sounds heavenly on Bluray, and it is the first time we have heard it as it sounded from the original film mag tracks.
Akira Kurosawa's Seven Samurai - The original monaural soundtrack was mastered at 24-bit from an optical soundtrack print, and it sounds absolutely stupendous for a mono sound track. There is LPCM 2.0 soundtrack that sounds equally good, but I prefer the mono track.
The Thin Red Line - This soundtrack is up there with the best war movie sound tracks in the business. The dynamics are huge, LFE potent, and the surrounds are extraordinarily active. The soundtrack should be played back at as close to reference level as your system can stand.
Michael Powell and Emeric Pressburger's classic The Red Shoes - This movie sports an excellent LPCM 2.0 soundtrack that is a natural, and right as rain. I bought it as a UK import, but it was worth every dime.
Steve McQueen's Hunger - I love this soundtrack for its attention to fine sonic details. The music is beautifully recorded, and sound sumptuous on Bluray.
I choose these soundtracks not just for the bombast, but for emphasis on the breath of the dynamics and audio subtleties recorded on the track. Some of them are in discrete 5.1, others in mono or stereo.
