Chinese director Zhao Liang focusing Inner Mongolia mine pneumoconiosis shady documentary "sad Xi Warcraft" selected the 72nd session of Venice Film Festival main competition unit, competing for the Golden Lion Award, become the main competition only selected Chinese films. Zhao Liang won the documentary "petition" at the Cannes Film Festival special screenings. Previously, he has directed the "paper planes" farewell to Summer Palace "in the river", "crime and punishment" and "together" and many other works. He also engages in the creation of contemporary art. The sad Xi demon animal "in the film project formerly known as" dust ", the English translation of the behemoth", corresponding to the Greek legend and the sea monster monster in the mountains.