Rabbit-Proof Fence (2002) on Netflix

It's 1931 in Western Australia. A.O. Neville is the government's official in dealing with aborigine issues. Under the law, he has the right to seize "half-caste" children - those with both aborigine and white parentage - to be housed on native settlements, where they are to be "re-educated" to western ways eventually to become servants for whites. The assertion is that this measure will protect the aborigine population, as if they are left to intermingle within aborigine communities, half-castes will turn the community white as the weaker aborigine gene will be bred out within a few generations. It is under this law that Neville seizes, among others, sisters, fourteen year old Molly Craig and eight year old Daisy Craig Kadibill, and their ten year old cousin Gracie Fields. Ever since arriving at the Moore River Native Settlement camp, Molly plans to escape with her sister and cousin, and walk all the way back to Jigalong to their real home, real family and their traditional way of life. Molly uses the 3,000 kilometer long rabbit-proof fence which runs adjacent to Jigalong to navigate her way home. But Neville and his trackers will not let a bunch of half-caste girls circumvent the law and its associated grand plan.