Crippled Kung Fu Boxer
When his kung fu gym is hijacked by the Hunchback and his gang, a student trains in the art of the Crippled Fist in an attempt to avenge his master.
Starring Cliff Lok, Shu-chu Chen, Elliot Ngok
Watch "Crippled Kung Fu Boxer" on Amazon released in 1979. It's a comedy and action movie, and has a rating of 5.4 out of 10 from Imdb which is fairly okay for this kind of movie, and is currently only available for purchase or rent.