I think my "yes" vote is strengthened by the fact that people are justifying their "no" votes with comparisons to the Matrix and Back to the Future franchises. Sure Back to the Future was fun and the Matrix was very clever, but compared to the original Star Wars, they are both pretty trivial films (in my opinion)--just good examples of blockbusters. Neither one has the cross generational, timeless aspects of the original Star Wars. They were good films, don't get me wrong, but no one is surprised that they don't show up in AFI top 100 lists, etc. As for Godfather I and II, they are both based on preexisting story by Mario Puzzo. Zombie's parallel with the Rocky franchise makes more sense to me. But the original Rocky was never changed to with the idea that Rocky IV was always intended and the filmmakers don't ever make the claim that Rocky is not the story of Rocky Balboa, but really the story of Apollo Creed, etc.

The point I am making is that Star Wars back in 1977 wasn't just another blockbuster, it was a truly special, transformative cultural event; the same cannot be said for the other films (even the Godfather, which might well be a superior film).