The Leg Fighters
When Pan, a South China martial artist is defeated and killed by Tan, a North China challenger in a legfighter duel, Pan's younger brother Pak vows to crush Tan with his own unique style of ferocious footwork.
Starring Dorian Tan Tao-Liang, Ha Kwong-Li, Kang Peng, Chin Lung Shao, Sun Jung-Chi, Wang Hsieh, Tsai Hung, Chen Chin-Hai, Hou Hsiao, Yan Hsiao
Watch "The Leg Fighters" on Amazon released in 1980. It's a comedy and drama movie, and has a rating of 5.7 out of 10 from Imdb which is fairly okay for this kind of movie, and is currently only available for purchase or rent.