Lucky Country (2009)

1902: the Australian Federation is a year old. 12 year-old Tom's beloved father Nat has dragged him and his sister Sarah to an isolated farm in the middle of the Australian outback. But Nat's dream of living off the land has died and he is losing his grip on sanity. When three ex-soldiers arrive at their cabin one night Tom, like his father, believes they are providence. But their presence becomes more menacing when one of them reveals a secret: he's found gold. As the lure of gold infects everyone around him the cabin becomes a psychological battleground in which Tom's loyalty is tested.