Complex sentence: One of his most famous films is "The 36th Chamber of Shaolin" which starred his martial brother, Lau Kar-fai, as well as "Drunken Master II" which starred Jackie Chan.
Split into simpler sentences: One of his most famous films is "The 36th Chamber of Shaolin" which starred his martial brother, Lau Kar-fai. And "Drunken Master II" which starred Jackie Chan.