In the film Constable Fitzpatrick is depicted as English. In reality he was Irish.
Steve Hart never wore an eye patch.
The film depicts Kelly being apprenticed to Harry Power at age eleven. In real life Kelly was fifteen when he began working with Power.
In the film the Kelly home is made out of corrugated iron. When we first see the house, it is 1867. However corrugated iron didn't exist in Australia until the 1880s.
The film depicts Kelly's hanging as being performed by pushing him off a catwalk. In real life, hangings in Kelly's time were performed by having the prisoner stand on a trapdoor, which would then be opened by a release leaver, sending the prisoner falling until they reached the end of the rope.
At 53m30s Ned is sitting with his back to a window. In the bottom left-hand corner, an articulated truck drives past outside.