Like fellow Austrian director Ulrich Seidl, with whom he collaborated several times, he was mainly known for his documentary films, such as Megacities (1998), Workingman's Death (2005) and Whores' Glory (2011).
Seperti sutradara Austria sejawatnya Ulrich Seidl, yang berkolaborasi dengannya beberapa kali, ia biasanya dikenal karena film-film dokumenternya, seperti Megacities (1998), Workingman's Death (2005) dan Whores' Glory (2011).