Mated in the Wilds is a 1921 Australian silent film directed by P. J. Ramster.
Two men, flying ace Justin Strong (Fred Oppey) and foreigner Montgomery Lyle (Anthony Aroney) are both in love with sportswoman Elsa Hope (Elsa Granger).
Elsa insists on seeing Justin's grave and drives out to the desert with Monty and her mother.
Monty ties Mrs Hopes to a tree and is about to abduct Elsa but she pulls a gun on him and eventually finds Justin living with some friendly aborigines.
[1] The cast was unpaid and could only work weekends so the film took over a year to complete.