Two men, one a businessman skilled in Kung Fu, the other a kickboxer discover they are brothers, and together, both in and out of the ring, they must face a crime syndicate. One of the first films to use the martial art of Muay Thai.
Is Duel of Fists on Netflix? Unfortunately the movie Duel of Fists is not yet available on Netflix.
| Directing | Chang Cheh | Director |
| Writing | Ni Kuang | Screenplay |
| Production | Runme Shaw | Producer |
| Crew | Lau Kar-Leung | Martial Arts Choreographer |
| Crew | Tong Kai | Martial Arts Choreographer |
| Art | Johnson Tsao Chuang-Sheng | Art Direction |
| Camera | Kung Mu-To | Director of Photography |
| Editing | Kwok Ting-Hung | Editor |
| Costume & Make-Up | Li Chi | Costume Design |
| Sound | Wang Yong-Hua | Sound Recordist |
| Directing | Lee Kwok-Keung | Assistant Director |
| Directing | Wang Yunhua | Assistant Director |
| Directing | Liu Tien-Min | Assistant Director |
| Art | Lai Yu | Props |
| Art | Ho Chieh-Fu | Props |
| Costume & Make-Up | Fong Yuen | Makeup Artist |
| Lighting | Kuan Ying-Chuen | Gaffer |
| Art | Kamber Huang Chin-Ba | Title Designer |
| Sound | Frankie Chan Fan-Kei | Original Music Composer |
