King's Cross tried to cancel the Back To Hogwarts announcement, but not everyone got the owl.
In the first six out of the eight movies in the Harry Potter series, Harry and his friends and peers make their trek to Hogwarts aboard the Hogwarts Express. With the exception of Harry and Ron’s highly illegal maneuver they partake in by driving the Weasley family’s flying car to Hogwarts, the Hogwarts Express is shown to be the only method of transportation onto school grounds. For book readers, this was always an opportunity for a fresh introduction, but in the films, many parts were cut out to avoid repetition and save on time.