Kan kwok hiu hung chi Yee hoi ho ching 

Set in the 1930s in Canton, Republic of China, the gangsters are on a rampage and opium trading is rampant. Meanwhile, the Japanese army invades China and Canton falls into the hands of the Japanese.

The Departed - (2006)

An undercover cop and a mole in the police attempt to identify each other while infiltrating an Irish gang in South Boston.

Blade Runner - (1982)

A blade runner must pursue and try to terminate four replicants who stole a ship in space and have returned to Earth to find their creator.

Racing Extinction - (2015)

Infernal Affairs - (2002)

A story between a mole in the police department and an undercover cop. Their objectives are the same: to find out who is the mole, and who is the cop.

Farewell My Concubine - (1993)

The story of two men, who met as apprentices in the Peking Opera, and stayed friends for over 50 years.

Ip Man - (2008)

During the Japanese invasion of 1937, when a wealthy martial artist is forced to leave his home and work to support his family, he reluctantly agrees to train others in the art of Wing Chun for self-defense.

In the Mood for Love - (2001)

Two neighbors, a woman and a man, form a strong bond after both suspect extramarital activities of their spouses. However, they agree to keep their bond platonic so as not to commit similar wrongs.

The Revenant - (2016)

A frontiersman on a fur trading expedition in the 1820s fights for survival after being mauled by a bear and left for dead by members of his own hunting team.

Hero - (2004)

A defense officer, Nameless, was summoned by the King of Qin regarding his success of terminating three warriors.