Donnie Yen Chi-tan (born 27 July 1963) is considered to be one of Hong Kong's top action stars. He is widely credited for bringing mixed martial arts (MMA) into the mainstream of Chinese culture by choreographing MMA in many of his films. Yen has displayed notable skills in a wide variety of martial arts, being well-versed in Tai Chi, Boxing, Kickboxing, Jeet Kune Do, Hapkido, Taekwondo, Karate, Muay Thai, Wrestling, Brazilian Jiu-Jitsu, Judo, Wing Chun, and Wushu. Seen as one of the most popular film stars in Asia of the early 2000s, Yen was one of the highest paid actors in Asia in 2009. Yen earned HK$220 million (US$28.4 million) from four films and six advertisements in 2013.

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