Yumeji’s Theme by Shigeru Umebayashi, from Wong Kar-Wai’s In the Mood for Love, was one of my classic film soundtrack obsessions (perhaps along with Michael Nyman’s score for The Draughtsman’s Contract). In simpler film school times, when I didn’t care for copyright, I even used it in (unfortunately illegal, academic-only versions of) my own movies. (hat tip to Ckck)