 Hung appeared as a child actor in several films for Cathay Asia and Bo Bo Films during the early 1960s.His film debut was in the 1961 film "Education of Love".In 1962, he made his first appearance alongside Jackie Chan in the film "Big and Little Wong Tin Bar", followed by a role in "The Birth of Yue Fei", in which he played the ten-year-old Yue Fei, the historical figure from the Song Dynasty who would go on to become a famous Chinese general and martyr.