I've lately revisited a favorite film: Wong Kar-Wei's In the Mood for Love:
The film is notable for the storytelling, pace, romantic tension...and the clothes.
Maggie Cheung's cheong sam are the film's visual signature. My mom had an orange silk cheong sam, slit scandalously high, in a florid '70s pattern. I would kill to still have that dress.
Also, his time-traveling follow-up, 2047: Same saturated palette, 1960's, vaguely Palm Springs motif, and the high-collared cheong sam costume. Love a film with a great wardrobe!