Mark Hartley has a very long list of the-making-of docos in his credits.
He also directed this important feature-length doco:
Not Quite Hollywood: The Wild Untold Story of Ozploitation! (Mark Hartley, 2008) doco
And also his first feature:
Garry Gillard | New: 11 November, 2012 | Now: 30 July, 2018