Amasone

When 11-year-old Ada's father forgets to pick her up at the airport, she is invited to stay with the neighbours to wait for him. Their daughter, Julia, is Ada's age, but disapproves of being told by her mother to play with Ada. Going outside to play after all, the two girls pit their wills against each other near a cave by the sea. Free from the adults' gaze, they approach each other and explore a new identity. - IMDb