Chang-Wha Chung is a South Korean film director, producer and screenwriter. Chung made his directorial debut with The Final Temptation (1953) and gained attention only when he released A Sunny Field in 1960. During the 1960s he started collaborating with the Hong Kong film industry. In 1968, he joined Shaw Brothers and directed martial arts classics such as King Boxer (1972) (the first Hong Kong movie to reach No. 1 on the U.S. box office in 1973). He moved to Golden Harvest in 1973, where he directed numerous productions until he returned to South Korea in 1977 to continue his career.
(Source: Wikipedia)