Question: 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?

Context articles: Ip Man (film)
Ip Man: The Final Fight
Ip Man 2
Ip Man (film series)
Ashton Chen
Bruce Lee, My Brother
Bruce Lee: The Man, The Myth
Legend of the Fist: The Return of Chen Zhen
Ip Man 3
The Legend Is Born: Ip Man

Ip Man is a 2008 Hong Kong biographical martial arts film based on the life of Ip Man, a grandmaster of the martial art Wing Chun and teacher of Bruce Lee.
 The film focuses on events in Ip's life that supposedly took place in the city of Foshan during the Sino-Japanese War.
 The film was directed by Wilson Yip, and stars Donnie Yen as Ip Man, with martial arts choreography by Sammo Hung.
 The supporting cast includes Simon Yam, Lynn Hung, Lam Ka-tung, Xing Yu, Hiroyuki Ikeuchi and Tenma Shibuya.
Ip Man: The Final Fight is a 2013 Hong Kong biographical martial arts film directed by Herman Yau, starring Anthony Wong, Anita Yuen, Jordan Chan, Eric Tsang and Gillian Chung.
 It is based on the life of the Wing Chun grandmaster Ip Man.
 This film has no connection to the earlier Ip Man films, such as Wilson Yip's "Ip Man" and "Ip Man 2", and Wong Kar-wai's "The Grandmaster".
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.
 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.
 Continuing after the events of the earlier film, the sequel centers on Ip's movements in Hong Kong, which is under British colonial rule.
 He attempts to propagate his discipline of Wing Chun, but faces rivalry from other practitioners, including the local master of Hung Ga martial arts.
Ip Man is a series of Hong Kong biographical martial arts films starting with "Ip Man" in 2008 and followed by two sequels – "Ip Man 2" (2010) and "Ip Man 3" (2015).
 All three films are directed by Wilson Yip, written by Edmond Wong, produced by Raymond Wong and star Donnie Yen.
 Mandarin Films released the first two films in Hong Kong, which earned more than $37 million with a budget of around $24.6 million.
 The films are based on the life events of the Wing Chun master of the same name.
 Donnie Yen has mentioned each film has a unique theme, that the first "Ip Man" film was about "Survival", "Ip Man 2" focuses on "Making a Living and Adaptation", while "Ip Man 3" focuses on "Life" itself.
Ashton Chen Xiaolong (born 6 January 1988 in Dengfeng, Zhengzhou, Henan), also known by his stage name Shi Xiaolong ("Sik Siu-Lung" in Cantonese), is a Chinese actor and martial artist.
 He is also credited as Xiaolung, Tommy Sik, Shi Xiao-Lung, Shi Xiao-Long, Shi Shao-Long, Shieh Shiao-Long, Xi Xiao-Long, Sik Siu-Loong, and S. L. Sik on some of his films.
 He has been a disciple of Shi Yongxin, the current abbot of Shaolin Temple, since he was two years old.
 Originally named "Chen Xiaolong", Chen was given a dharma name—Shi Xiaolong—by the abbot.
 He was taught martial arts by his father and Shi Yongxin at a young age.
 He gained attention in the entertainment industry after his performance at the International Shaolin Kung Fu Festival in Zhengzhou at the age of four.
 He became a child actor in China and achieved great success in films such as the 1994 martial arts comedy "" (新乌龙院).
 In 2003, he stopped acting and went to study in the United States.
 In 2005, he returned to China and starred as Zhan Zhao in the television series "Young Justice Bao III".
 In 2007, he continued his studies in the United States and graduated from high school in 2008 from the prestigious Performing Children's School (PCS) in New York City.
 He has continued his acting career in China since then.
 In 2010, Chen played one of Ip Man's students in the martial arts film "Ip Man 2".
Bruce Lee, My Brother (, also known in the United Kingdom as Young Bruce Lee) is a 2010 Hong Kong biographical martial arts drama film directed by Raymond Yip, and also written, produced and directed by Manfred Wong, and also storied, produced and narrated by Bruce Lee's real life younger brother Robert Lee.
 Starring Aarif Lee as Lee, Tony Leung Ka-fai and Christy Chung as Lee's parents, the film is based on the life of Bruce Lee in his teenage years to part of his adult years.
Bruce Lee: The Man, The Myth (, also known as Bruce Lee: The True Story) is a 1976 Hong Kong semi biographical martial arts film starring Ho Chung-tao and directed by Ng See-yuen.
 The film was released in the Hong Kong on 28 October 1976.
Legend of the Fist: The Return of Chen Zhen is a 2010 Hong Kong martial arts film directed and produced by Andrew Lau, and starring Donnie Yen as Chen Zhen, a role made famous by Bruce Lee in the 1972 film "Fist of Fury".
 The film is a sequel to the 1994 film "Fist of Legend", which starred Jet Li as Chen Zhen.
 Principal photography for "Legend of the Fist: The Return of Chen Zhen" began in November 2009 and ended in early February 2010; shooting took place in Shanghai, China.
 The film was shown out of competition during the opening night of the 67th Venice International Film Festival, and 2010 Toronto International Film Festival.
 The film was released in Chinese theatres on 21 September 2010 and two days later in Hong Kong on 23 September 2010.
Ip Man 3 is a 2015 Hong Kong biographical martial arts film directed by Wilson Yip, produced by Raymond Wong and written by Edmond Wong with action choreography by Yuen Woo-ping.
 It is the third in the "Ip Man" film series based on the life of the Wing Chun grandmaster Ip Man and features Donnie Yen reprising the title role.
 The film also stars Mike Tyson, and Yip Man's pupil Bruce Lee is portrayed by Danny Chan.
 Principal photography commenced in March 2015 and ended in June that year.
The Legend Is Born – Ip Man is a 2010 Hong Kong biographical martial arts film based on the early life of the Wing Chun grandmaster Ip Man, directed by Herman Yau and starring Dennis To in the titular role.
 Though not made in collaboration with Wilson Yip's "Ip Man" or "Ip Man 2", "The Legend is Born" features several actors who appeared in Yip's films, including Sammo Hung, Louis Fan, and Chen Zhihui.
 The film also features a special appearance by Ip Chun, the son of Ip Man.