Bob, I don't know if anyone has said this, but I think you should have the movie end after the duel. Don't show Padme dying or the kids being born. No Darth Vader "Noooooooo" scene.

It would have depth, and would be a great cliff hanger. I think it would make the Darth Vader mystery work for the OT. And to further that, I think you should remove any mention of the name Darth Vader from this movie. We shouldn't know who Darth Vader really is until ESB. I think it could work. But this is only a suggestion.