go watch the movie. The manga is the same with the movie, with some few additional scene that were cut from the film. if u read this b4 watching the movie, you are doing a disservice. Because the movie was the true superior adaptation. The visual and sounds of the movie will add layer and depth to the experience. More than reading the manga will ever done. But if you finish the movie and like it i suggesting reading it on your free-time. Because it has some scene that were cut from the film, but sadly if your looking for a OVA or extendedending. Your not lucky the manga end right where the movies ends.