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.

During World War II era, a young woman, Wang Jiazhi, gets swept up in a dangerous game of emotional intrigue with a powerful political figure, Mr. Yee.

Two melancholic Hong Kong policemen fall in love: one with a mysterious underworld figure, the other with a beautiful and ethereal server at a late-night restaurant.

During China's Warring States period, a district prefect arrives at the palace of Qin Shi Huang, claiming to have killed the three assassins who had made an attempt on the king's life three years ago.

The battle of Red Cliff continues and the alliance between Xu and East Wu is fracturing. With Cao Cao's massive forces on their doorstep, will the kingdoms of Xu and East Wu survive?

In 208 A.D., in the final days of the Han Dynasty, shrewd Prime Minster Cao convinced the fickle Emperor Han the only way to unite all of China was to declare war on the kingdoms of Xu in the west and East Wu in the south. Thus began a military campaign of unprecedented scale. Left with no other hope for survival, the kingdoms of Xu and East Wu formed an unlikely alliance.