aka THE HAZARD CITY or CITY OF STRANGERS.

Best use of CGI in a movie ever! - 8/10 (13 October 2012)
James Yuen (Director, Writer) Adam Chan (Action Director) Francis Ng Ti Lung Nick Cheung Stephanie Che Joe Ma (Producer)
Well made, intelligent film - 8/10 (27 May 2001)
Derek Chiu (Director, Writer) Milkyway Image (Production Company) Jordan Chan Patrick Tam Wu Hsing-Guo Crystal Lui Johnnie To (Producer)
Ching Siu-Tung (Director, Action Director) Lee Tat-Chiu (Action Director) Ben Lam Leung Kar-Yan Yasuaki Kurata Wong Tin-Lam Zuki Lee
Recommended :) - 7/10 (08 January 2006)
Very well rounded - 9/10 (27 May 2001)
Too long (21 May 2012)