Who, Robert Mulligan or Ruby Yang, is a Chinese American filmmaker?
Ruby Yang Ruby Yang (楊紫燁; Simplified Chinese: 杨紫烨), is a Chinese American filmmaker.
China Heavyweight China Heavyweight (also known by its Chinese title 千錘百煉) is a 2012 documentary film by the Chinese-Canadian documentary film director Yung Chang and released by EyeSteelFilm. It is Yung Chang's second long feature documentary film after "Up the Yangtze" from 2007.