So long, Paris! (2020)

12-year-old Lucy can't accept her parents have divorced. Holidays are ending. Just before Lucy is to leave Paris, she puts off returning to London at her mum's, and grills her dad about whether he has found a new relationship. As darkness falls, Lucy gets a piece of news that upsets her so that she runs away from her dad's. She wanders in the city. Takes risks. And finally faces reality.