Cinturón negro was released in the year 1974。Cinturón negro is also called as Black Belt Jones, o Faixa Preta, Jones, Johnny lo svelto, Freie Fahrt ins Jenseits, Ceinture noire。

The Mafia wants to buy Pop's downtown karate studio in an area planned for redevelopment. They get Pinky and his thugs to pressure Pop into selling, but accidentally kill him. The karate students call the kung-fu expert, Black Belt Jones, for help. Pop's daughter, Sydney, refuses to sell the building. Black Belt Jones and Sydney, who is also a martial arts expert, ward off the attackers.

Cinturón negro actors and actresses include Gloria Hendry, Marla Gibbs。