He worked with Alma Brooks, an ex-barmaid, who co-produced, operated the camera, edited, co-scripted and acted in their films.
[1] Kathner and Brooks were also "shady con artists and fugitives from the law",[2] sometimes described as the "Bonnie and Clyde" of the Australian film industry.
Kathner and Brook's features were essentially B-grade movies, and dealt with typically Australian topics such as Ned Kelly and horse-racing.
[6] Hunt Angels (2006) is a feature-length documentary which re-enacts Kathner and Brooks' "movie-making spree that took on the Hollywood barons, a corrupt police Commissioner and the (so-called) cultural cringe, all in their passionate pursuit to make Australian films.
"[7] Hunt Angels "uses an innovative digital composite technique whereby the characters come alive in the real world of Sydney in the 30s and 40s".