Lucas himself was like the man behind the curtain in "The Wizard of Oz" — the unseen force pulling the levers, known to everyone but accountable to no one. He did not deign to speak to reporters. He denied their requests to see the collection of traditional and digital art that would be housed in what many wrongly thought was solely a "Star Wars" museum. He wouldn't consider sites west of Lake Shore Drive, even though plausible ones were offered.