We know what you're thinking: Another item about the new "Star Wars" teaser? The fleeting glimpse at J.J. Abrams' upcoming entry in the biggest franchise in movie history is breaking every corner of the internet today; is there any good in adding to the noise? But here's the thing: When the original "Star Wars" hit theaters in 1977, it had an immediate, irrevocable impact on the way blockbusters were produced and marketed; it follows that the latest attempt to add to the story tells us plenty about the marketplace for big-budget American movies today — specifically, how they hold sway over millions.