The first time I saw it (and i was already a "Kubrick-fan") i didn't like the film. The last time I was moved to tears.
Clearly a masterpiece imo.
Bu the best (anti) war-film and the best use of music is for me in "The thin red Line". The malaysian songs are just perfect for the film.
Apocalypse Now also uses songs in a great way.
And another Kubrick war film, "Full metal Jacket" ha also a great soundtrack. But almost all Kubrick films have.