1999 film by Johnnie To

2003 film directed by Andrew Lau and Alan Mak

Chan 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.

2019 film directed by Herman Yau

1994 Hong Kong film directed by Taylor Wong

2011 film by Tsui Hark

1990 film by Wong Kar-wai

Office worker Truly Lin goes on a journey through her memories. 20 years ago, she had a crush on the most popular guy in school. Taiyu, a ruffian and a bully, is in love with the campus belle. Truly teams up with Taiyu to tear the golden couple apart and help each other to get the ones they love.

Five police officers in Hong Kong are kidnapped. The police commissioner is on a business trip overseas. Two vice commissioners, Sean Rau and M.B. Lee, then take over the case. The two vice commissioners are rivals who both vie for the police commissioner seat. At first, M.B. Lee takes the lead in the case, but comes to a dead end. Sean Lau then takes the lead, but he falls into a trap. Both men are then investigated by the ICAC (Independent Commission Against Corruption).