He joined Rediffusion Television (RTV) in 1979 as an administration officer for the production department, where for two years he supervised the operations of all RTV's television productions. In 1981, he joined Johnny Mak Productions as a producer. While at Johnny Mak, he produced Lonely 15, Dragon Force, and Everlasting Love, which was selected to participate in the Director's Fortnight of the Cannes Festival in 1984.
From 1986 to 1988, he served as executive in charge of distribution at D&B Films, during which time he greatly contributed to launching the careers of Brandon Lee and Michelle Yeoh. In 1988, he joined Film Workshop as general manager, and was the executive in charge of production for The Killer, Swordsman, Spy Games, Love and Death in Saigon, A Chinese Ghost Story II, and Gunmen. He also successfully marketed these films internationally.
In 1990, Chang formed Milestone Pictures with director John Woo, and together they created Once a Thief and Hard-Boiled. At the same time he also became the manager of Asia's superstar Chow Yun-Fat and world-class writer Lilian Lee, whose books include Farewell, My Concubine and The Last Princess of Manchuria.
In 1993, Chang co-produced John Woo's American film debut, Hard Target. In 1994, he formed WCG Entertainment with partners John Woo and Christopher Godsick. He has since produced Broken Arrow, the two-hour television pilots John Woo's Once a Thief and Blackjack for Alliance Communications, Face/Off, Replacement Killers, The Big Hit, The Corruptor, Mission Impossible II, and Anna and the King.
With John Woo, Chang formed Lion Rock Productions and has produced Windtalkers for MGM. Currently, Chang is producing John Woo's Paycheck starring Ben Affleck.
Terence Chang Facts