葉偉信
"Ip Man" is the first film based on the life of Ip Man. It also marks the fourth film collaboration between director Wilson Yip and actor Donnie Yen. The two also reunite with co-star Simon Yam after 2005's "". The screenplay for "Ip Man" was written by Edmond Wong, the son of film producer Raymond Wong. Wong was the screenwriter of Yip and Yen's second collaboration, 2006's "Dragon Tiger Gate". Ip Man's eldest son, Ip Chun, his student Leo Au-yeung, and Changquan gold medalist To Yu-hang served as technical consultants for the film, providing advice on the film's story and martial arts choreography. The music for the film was provided by veteran Japanese composer Kenji Kawai, who also served as a composer on the 2006 film, "Dragon Tiger Gate" which featured Wilson Yip and Donnie Yen as director and actor respectively.