You can see a bit of the Walled City in the old Van Damme movie, Blood Sport [1].
There used to be an incredible multi-story arcade outside Tokyo, あなたのウェアハウス [2], with two of the floors being themed as KWC. The weathering on all the elements (including the escalator and crane games!) was fantastic.
There's a recently released kungfu movie whose story happened in the Kowloon walled city. The government is planning to relocate the movie set to the original address for exhibition.
There used to be an incredible multi-story arcade outside Tokyo, あなたのウェアハウス [2], with two of the floors being themed as KWC. The weathering on all the elements (including the escalator and crane games!) was fantastic.
[1] https://www.youtube.com/watch?v=smGHdOU4Qu4
[2] https://en.wikipedia.org/wiki/Warehouse_Kawasaki