Watch White Bird: A Wonder Story (2022) online

White Bird, directed by Marc Forster, tells the story of Julian (Bryce Gheisar), a slightly arrogant child who at school has a reputation for being a bully, so much so that he targets anyone he sees as "different". Due to this character of him, the boy is also suspended from school.
The summer after this experience, Julian spends his holidays in Paris with his grandmother (Helen Mirren), who tells him a story during a hot afternoon: how she managed to escape from the Nazis during the Second World War as a girl. The grandmother was a young Jewish woman who lived in France occupied by Hitler's troops. Helping her to save herself was a peer of her age, a young man named Julian, just like her nephew, who, despite suffering from leg deformities, managed to make a gesture that made him a true hero.