جاده خاکی

A family of four, a father with a leg in plaster, a mother, their quiet elder son Farid and an exuberant six-year-old boy, drives across the Iranian countryside with their sick dog. The younger boy is kept in the dark about the purpose of the trip: the family is taking Farid to smugglers who will get him across the border and out of the country. Along the way they joke, sing pre-revolution pop songs and argue, while the coming separation weighs on each of them. The film premiered in the Directors' Fortnight at Cannes in July 2021 and won the top prize at the BFI London Film Festival.

Note on sources: Wikipedia says the family drives to the Azerbaijani border, while The Arts Desk names the Turkish border.