The Big Boss (1971)

The Big Boss (Chinese: 唐山大兄; originally titled Fists of Fury in the United States) is a 1971 Hong Kong action martial arts film produced by Raymond Chow and starring Bruce Lee in his first major film in a lead role. The film also stars Maria Yi, James Tien, Tony Liu, and Nora Miao. Originally written for Tien, the leading role was given to Lee instead when the film's original director, Ng Kar-seung, was replaced by Lo. The film was a critical success and excelled at the box office. Lee's strong performance overshadowed Tien, already a star in Hong Kong, and made Bruce Lee famous in Asia and eventually the world.
The film went on to gross nearly US$50 million worldwide (equivalent to approximately $400 million adjusted for inflation), against a tight budget of $100,000, approximately 500 times its original investment. It was the highest-grossing Hong Kong film up until Lee's next film, Fist of Fury (1972).