I don't know of any film, except the excellent Brief Encounter where the soundtrack includes an almost complete symphonic work, Rachmaninoff's Second Piano Concerto. I saw this movie as a 15-year old and fell in love with the music of Rachmaninoff. A few months later, I graduated to the three B's, Bach, Beethoven and Brahms. At about this time, I also fell in love with the music of a two-B genius, Bix Beiderbecke.