Walkabout

In the film Walkabout, two teenage siblings are stranded in the Australian outback after their father attempts to murder them and then takes his own life. They are rescued by an Aboriginal boy who is on his "walkabout," a traditional coming-of-age ritual. The film explores themes of survival, innocence, and the clash between modern society and the natural world. The abandoned children learn to fend for themselves and encounter the harsh realities of the wilderness, while the Aboriginal boy's tribal ways and rituals offer a contrast to their urban upbringing. The film has been interpreted as an allegory for the loss of innocence and the impossibility of returning to a primal state of nature.

You can stream Walkabout on: The Criterion Channel Apple TV Store

Some movies that have similar genres and were produced around the same time as Walkabout include Deliverance, A Twelve Year Old Pirate, The Bears and I, The Man Who Would Be King, Aguirre, the Wrath of God, Easy Rider.