Sorry, I am a cop. Who knows?

a cosplay set up shoot i did wit my frens...

Chan Wing Yan (Tony Leung Chiu Wai) - ME
Inspector Lau Kin Ming (Andy Lau) - Thomas
Camera and Lighting - Rebecca and Hakim
Digital Imaging - ME

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Check the scene here [link]
This is probably my favorite scene in this film. Undercover cop Chan Wing Yan (Tony Leung Chiu Wai) confronts his enemy, Inspector Lau Kin Ming (Andy Lau) in order to clear his name and reveal the real traitor in the Hong Kong Police Force.

This movie would be later be remade as the US film called The Departed (2006), set in Boston, with Leonardo DiCaprio and Matt Damon playing in Tony Leung's and Andy Lau's roles respectively.

Lau Kin Ming: Give me another chance.

Chan Wing Yan: Why should I give you another chance?

Lau Kin Ming: Before I did not have a choice. Now I want to choose to be a good man.

Chan Wing Yan: Good. Go tell it to the judge. See if he will let you be a good man.

Lau Kin Ming: You want me dead?

Chan Wing Yan: Sorry, I am a cop.

Lau Kin Ming: Who knows?

Chan then points his gun at Lau, to turn him in to the police.