I second polysicsarebest and recomment Kikukjiro! :) And maybe The Birdpeople of China by Takashi Miike. Don't worry, there is not much typical Miike violence in this. Instead it is poetic, sometimes funny and the photography is gorgeous. It's not THAT lighthearted, though. And you might cry at the end but in a good way. Oh well, I cried too when they looked thought the beautiful drawings the granddad made for them so.
I second Birdpeople of China- very nice film that I would also call 'poetic'!
EDIT- I really liked Kikukjiro too!
I highly recommend Hirakazu Koreeda (director). Someone else mentioned In the Mood for Love, that is a great movie. Anything by Wong Kar Wei is going to be in a similar vein (please check out Chungking Express.)
I wish these sorts of movies could be made in USA studios, I am sure the movies could be similarly engaging yet with their own flair.