Books and movies on Asian Culture

I'm writing a comic book in whichh some of the stories take place in China, and in the Chinese community.
What movies accurately portary Chinese reality-Chinese youth culture and Subculture, and modern day Chinese society?

Do a Google search using this phrase: Documentary portraying Chinese youth culture in modern day Chinese society.

Are there any movies on Chinese street gangs?

Do a Google search using this phrase: Documentary on Chinese street gangs.

What Chinese writers and poets should I look at to get ideas?

Ideas for a comic book? Why not look at some of the many Asian anime films for ideas? There are thousands of years of writers and poets. Are you wanting modern writers that write of modern society or bygone eras? Are you wanting historical writers and poets? What genre?

When you know, do a google search using a phrase such as this example: list of modern Chinese writers and poets in the (blank) genre

Which ones compare to Chaucer and to other pre-20th century writers?

Don't know. You'll get an idea about this once you've taken a look at websites about the writers.

What's the Chinese version of Trainspotting and the Warriors?

Do a Google search using the phrase: Chinese version of Trainspotting and the Warriors

Likewise, what movies, books on Japanese and KOrean culture would you suggest? What Japanese and KOrean writers and poets should I look at?

Use the same search phrases above except insert the other nationality where "Chinese" is used.

my personal favorite Chinese movie director is Wong Kar-Wai. You should see his movies they whould give you some idea.