“Ip Man 4,” the latest installment in the Chinese martial arts film franchise “Ip Man” based on the life of a legendary Wing Chun master, led the Chinese mainland box office Friday, according to the China Movie Data Information Network Saturday. The film raked in about 95.90 million yuan (around 13.69 million USdollars) on its opening day, accounting for nearly 48 percent of the daily total. Set in the 1960s, the new film sees Donnie Yen reprising the title role as the Kung Fu master who travels to the United States to work with Bruce Lee after the latter decides to open a Wing Chun school.