Mou gaan dou II (2003)

Director: Alan Mak

Cast: Anthony Wong Chau-Sang as Inspector Wong Chi Shing (as Anthony Wong), Eric Tsang as Hon Sam, Carina Lau as Mary Hon, Francis Ng as Ngai Wing Hau, Edison Chen as Officer Lau Kin Ming, Shawn Yue as Chan Wing Yan, Jun Hu as SP Luk (as Hu Jun), Tung Cho 'Joe' Cheung as Kwun (as Joe Cheung), Henry Fong as Gandhi (as Fong Ping), Peter Ngor as Negro, Arthur Wong as Wah, Teddy Chan as Ching, Chung-yue Chiu as Mary (as Yu Chiu), Phorjeat Keanpetch as Sunny, Shipin Ye as Socialites (as Ye Shi Pin)

This film is a good example for the fact that good and fertile story is
the key of film making. "Infernal Affair II" shows how to inherit an
original story and expend its scope in a reasonable, even creative way.
It is a very good experience watching this film, the actors are good,
the directing is skilled and the sequences are intensive, and the
climax is stunning, but meanwhile, it always makes you have some ideas
connecting to the Godfather series. No matter its epic scale and clues
of scenes, you can feel their respect to(or, borrowing from?) the
Coppola's legendary film(maybe only the first two...) that's a good
try, but not an original one.

a very important work of Hong Kong Cinema in the 90s

Worth watching, especially with the original "Infernal Affairs" 7/10