 In 1977, he became a scriptwriter at RTV and was involved in several drama series such as "Reincarnated" and "Dragon Strike".He entered the film industry in 1979, working in the creative side of production.In 1995 he formed a partnership with director-cinematographer Andrew Lau and writer-producer-director Wong Jing to establish BoB and Partners Co. Ltd., the creative team most noted for its creation of the very successful "Young and Dangerous" which established box-office-record-breaking success.