Xin nan quan bei tui was also released in the U. S. as The Secret Rivals 3 and Assignment to Kill. It has "Northern Kick" Shao Yi-Fei (John Liu) is looking for the murderer of his younger brother and his friend "Southern Fist" Shen Yin-Wai (Alexander Rei Lo) is the killer. They must work together to find out who really did it - he's played by choreographer Robert Tai - which means ninety minutes of fights.
Directed by Hsin-Yi Chang and Sung Yee Cheung and written by Chien-Chi Chang, this really has nothing to do with Ng See-yuen's 1976 movie Nan quan bei tui AKA Secret Rivals AKA Northern Leg, Southern Fist AKA Silver Fox Rivals.
This movie feels like it would be more at home on USA's Kung Fu Theater which I may have watched just as much as USA Up All Night.
Directed by Hsin-Yi Chang and Sung Yee Cheung and written by Chien-Chi Chang, this really has nothing to do with Ng See-yuen's 1976 movie Nan quan bei tui AKA Secret Rivals AKA Northern Leg, Southern Fist AKA Silver Fox Rivals.
This movie feels like it would be more at home on USA's Kung Fu Theater which I may have watched just as much as USA Up All Night.