As untrue as most of the Film is that is the point.
Just as Quentin Tarantino makes films where he alters history so does this film.
Silly people in this review section are intentionally review bombing this film when within the first minute the film tells you none of this is true, then cuts to the film title, True History of the Kelly Gang. It's an intentional decision, a joke if you will but it would seem most people aren't capable of comprehending that and its causing them some false "patriotic" outrage seeing a national icon being used as a vehicle for a fictional story, not like that's ever happened before.