Yeah, you're right. They would have been better off doing things like that... but I'm glad they haven't. Even if they could make it totally seamless, Mielr is right, there was no other way for them to do it back then. It was a film made in 1977, for crying out loud! I know I can forgive a few technical flaws in exchange for a great movie. I don't know why Lucas and his fanboys can't!