[michaelx]

I‘m also fascinated by Kowloon Walled City since the first time I saw it in the Dreamcast game Shenmue 2.

One of the best documentaries IMHO is the following 4 part series from 1989 which shows the everyday life in KWC: https://www.youtube.com/watch?v=Lby9P3ms11w

I also recommend the already mentioned book City of Darkness and movie Chungking Express. Additional Jackie Pullinger‘s books "Crack In The Wall: Life & Death in Kowloon Walled City" (http://amzn.to/1nNKkuq) and "Chasing the Dragon" (http://amzn.to/1kd9zWc) are worth a read.