Please know what your talking about. Halo wars was made originally by Bungie, then it got shelved. As for Star Wars, like I said it was written as one story but George found the story was to big to be one movie so it got split up and the 2nd and third parts shelved. When a New Hope hit screen it was a much bigger hit than anticipated so the next 2 movies were able to be made but if A New Hope was a flop it'd have been the only film.