Incredible Kung Fu Master (1979) with Sammo Hung, Wong Ha, Peter Chan, Phillip Ko, Stephen Tung.
Plot: Two brothers Lee Chun Fei (Wong Ha), a Wing Chun stylist, and Lee Chun Pang (Peter Chan), a Five Animals stylist, encounters a town bully Yeung Wai (Lee Hoi Sang) harassing a civilian. Together, with their own distinctive kung fu style, the brothers defeat Yeung and are praised by the townsmen. Later, when the townsmen debate on who is the better martial artist of the two, the brothers become bitter rivals and start their own martial arts schools. Then a rich man Chin Fung (Phillip Ko) hires the two brothers to teach his sons, the crooked-eyed Big Dog (Addy Sung), and Little Dog (Chung Fat). Big Dog becomes Fei’s disciple and Little Dog becomes Pang’s disciple. Meanwhile, a local young kung fu fanatic Sei Leng Chai (Stephen Tung) is trying to create his own kung fu style and befriends a wandering winemaker Fei Chai (Sammo Hung), who is an expert martial artist. Fei Chai advises Sei Leng Chai to learn every style of kung fu he can and he starts studying from Fei Chai, Fei and Pang. Later, it is revealed that Yeung is actually Chin’s kung fu senior and he sent his fake sons to study under them to understand their styles more. Chin wants to cripple Fei and Pang to avenge Yeung. As they fight, Sei Leng Chai comes to help and the brothers eventually reconcile their brotherhood. Sei Leng kills Chin and Yeung arrives to defeat and capture Sei Leng Chai while Fei Chai comes to the rescue and kills Yeung.