Joseph Koo Kar-Fai was a Hong Kong composer. He used the pen name Moran (莫然) for Mandarin songs early in his career. According to the Hong Kong Academy for Performing Arts, Koo was one of the most respected composers in Hong Kong.

Fist of Fury, also known as The Chinese Connection, is a 1972 Hong Kong action martial arts film directed by Lo Wei and produced by Raymond Chow under Golden Harvest. The film stars Bruce Lee in his major role after The Big Boss (1971). Bruce Lee also worked as the film's action choreographer. In the film, Chen Zhen, a student of Huo Yuanjia, fights to defend the honor of the Chinese in the face of foreign aggression and also exact vengeance responsible for Huo's death.