葉問4 tell story about "Following the death of his wife, Ip Man travels to San Francisco to ease tensions between the local kung fu masters and his star student, Bruce Lee, while searching for a better future for his son..".
Cast : Donnie Yen, Wu Yue, Vanness Wu, Scott Adkins, Danny Chan Kwok-Kwan, Vanda Lee, Karena Ng, Kent Cheng, Ngo Ka-nin, Lynn Hung, Lo Meng, Mark Strange, Chris Collins, Grace Englert, Nicola Stuart-Hill, Zhou Xiao-Fei
- Runtime : 105 minutes (1' 45")
- Genre : Action Drama History
- Production : Mandarin Motion Pictures Limited Shanghai Bona Mandarin Films Distribution Co.
- Release : December 19, 2019
- Countries : Hong Kong
- Languages : 广州话 / 廣州話