Infernal Affairs was released on December 12, 2002.

Infernal Affairs was directed by Alan Mak Siu-Fai, Andrew Lau Wai-Keung.

Infernal Affairs has a runtime of 1h 41m.

Infernal Affairs was produced by Andrew Lau Wai-Keung, Shi Nansun.

Chen Wing Yan, a young police officer, has been sent undercover as a mole in the local mafia. Lau Kin Ming, a young mafia member, infiltrates the police force. Years later, their older counterparts, Chen Wing Yan and Inspector Lau Kin Ming, respectively, race against time to expose the mole within their midst.

The key characters in Infernal Affairs are Senior Inspector Lau Kin-ming (Andy Lau), Chan Wing-yan (Tony Leung Chiu-wai), Superintendent Wong Chi-shing (Anthony Wong Chau-Sang).

Infernal Affairs is rated R.

Infernal Affairs is a Drama, Crime, Mystery film.

Infernal Affairs has an audience rating of 9.5 out of 10.

Infernal Affairs had a budget of $6.4M.

Infernal Affairs has made $8.8M at the box office.