I read recently that George Lucas considered doing a sequel to his movie "Star Wars", which was extremely popular when it came out, but decided that the movie was a complete story and that he didn't have enough material for a sequel. Classic movies as a rule don't have sequels, but one was made for "The Godfather" which came out about the same time. Supposing Lucas had made the sequel to "Star Wars" after all. What the second movie have worked?