Lau Kar-leung
Kwan worked on films with two of the students of Lam Sai-wing (himself a student of the real Wong Fei-hung). First, Leong Wing-hang, who worked as action director on Wong Fei-hung films as well as other Kwan vehicles including "The Five Heroes' Deadly Spears" (1951). Later he worked with Lau Cham, father of Lau Kar-leung and Lau Kar-wing.