"If I was on a desert island, I'd bring The Wizard of Oz with me," says Elizabeth Daley , dean of the USC School of Cinematic Arts. "It always makes me feel alive. I could watch it over and over." And people have, generation after generation. In fact, it's the most-watched film of all time, according to the Library of Congress, thanks to regular showings on broadcast television since the mid-1950s (and on cable since the '90s). That's not including sequels and prequels, which Hollywood keeps releasing each decade like swarms of flying monkeys. The most recent, Oz the Great and Powerful , starring James Franco as a hunky young wizard, grossed more than $230 million domestically. That yellow brick road clearly is made of gold.