Tsui Hark (born 1950), born Tsui Man-kong, is a Hong Kong film director, producer, and screenwriter. Tsui has directed several influential Hong Kong films such as Zu Warriors from the Magic Mountain (1983), the Once Upon a Time in China film series (1991–1997), and The Blade (1995). Tsui also has been a prolific writer and (a very hands-on) producer; his productions include A Better Tomorrow (1986), A Chinese Ghost Story (1987), The Killer (1989), The Legend of the Swordsman (1992), The Wicked City (1992), Iron Monkey (1993) and Black Mask (1996). He is viewed as a major figure in the Golden Age of Hong Kong cinema and is regarded by critics as "one of the masters of Asian cinematography".
In the late 1990s, Tsui had a short-lived career in the United States, directing the Jean-Claude Van Damme–led films Double Team (1997) and Knock Off (1998). Both films were commercially unsuccessful and critically panned; Tsui himself was unsatisfied with his lack of creative control and returned to Hong Kong to continue his career. He has since found new commercial and critical success with blockbusters such as the Detective Dee film series (2010–present), Flying Swords of Dragon Gate (2011), and The Taking of Tiger Mountain (2014).