Chee Soo and one of his London Feng Shou kung fu clubs were featured in a 1975 BBC Television documentary about the kung fu boom of the early 1970s .
It 's effects on teenagers contrasting traditional western boxing with hard and soft styles of kung fu .
Chee Soo and one of his London Feng Shou kung fu clubs were featured in a 1975 BBC Television documentary about the kung fu boom of the early 1970s and it 's effects on teenagers contrasting traditional western boxing with hard and soft styles of kung fu .