Known internationally for hours-long, unvarnished observational documentaries about workers, migrants and political outcasts — 《
铁西区》 (West of the Tracks, 2003) on post-industrial Shenyang, 《
和凤鸣》, 《
死灵魂》 (Dead Souls). Festival regular at Cannes, Venice, Locarno; mostly unscreenable inside mainland China.