Check out the new trailer for Harry Potter! Streaming on HBO Max December 25, 2026. The young orphan Harry Potter grows up with his aunt and uncle, who only take advantage of him. Shortly before his eleventh birthday, however, his life changes when he receives an invitation to Hogwarts, a school for witchcraft and wizardry. Magical creatures, potions lessons and the teacher Snape, who doesn't seem to like him, await him there. Harry finds new friends in his classmates Ron and Hermione. And soon he has to deal with the most evil of all wizards. © Home Box Office (HBO)