The Harry Potterseries has long been completed in both book and movie form, yet in the midst of questions about a ninth film, there is one Harry Potter book detail I would definitely want changed. In the 1990s, Harry Potter rapidly took the world by storm, raking in millions of book sales and a film franchise before the series was even completely finished. Miraculously, Harry Potter has managed to continue expanding even after Harry's story concluded via spinoff movies, a play, and a Potter TV series. Yet, if Harry's story were to pick back up, this point should change.