To say that Rolf de Heer's filmography is a varied one, is an understatement. Multi-skilled, he produces, writes and directs, sometimes on the same project but not always. Projects often involve indigenous culture and issues but not always. Rolf is a true original. The link below is his IMDB entry and worthy of a detailed look with lots of trips, at the click of mouse, deeper into the films he has been a part of.
https://www.imdb.com/name/nm0208854/?ref_=tt_ov_dr
...and his 2007 B&W silent film...and the answer to Q24...(it's fun being secretive)