A timeline could trace Alfonso Cuarón's career from his early Mexican films through the production, release and afterlife of Harry Potter and the Prisoner of Azkaban, then into Children of Men and his later Oscar-winning work. The reported Busan master class is a hook for examining how a commercially huge franchise assignment shaped an auteur's craft, and how his single Harry Potter film altered the visual and tonal direction of the series. This timeline was generated automatically by TimeStrands AI from Wikipedia research. Facts are sourced; framing may be imperfect.