Infernal Affairs (Wu jian dao, Mou gaan dou)
(Country: Hong Kong; Year: 2002; Director: Keung Lau, Siu Fai Mak; Writer: Felix Chong, Siu Fai Mak; Stars: Andy Lau, Tony Leung, Anthony Wong, Eric Tsang, Kelly Chen, Sammi Cheng, Edison Chen, Shawn Yue, Elva Hsiao)