The Teahouse (film)

The Teahouse is a 1974 Hong Kong crime drama directed by Kuei ChihHung. Written by On Szeto, the film is about an immigrant restaurant owner trying to protect his family from juvenile gangs. It was such a hit that the film was followed by a 1975 sequel, Big Brother Cheng, with kung fu star Kuan Tai Chen reprising the eponymous role.

Source: Wikipedia