Who was the director of the 2010 Hong Kong biographical martial arts film in which Ashton Chen played the role of a martial arts student?
Ip Man 2: Ip Man 2 (also known as Ip Man 2: Legend of the Grandmaster) is a 2010 Hong Kong biographical martial arts film loosely based on the life of Ip Man, a grandmaster of the martial art Wing Chun. Ip Man 2:  A sequel to the 2008 film "Ip Man", "Ip Man 2" was directed by Wilson Yip and stars Donnie Yen, who reprises the leading role.
i don't know