In 1941, media mogul Henry R. Luce exulted, "American jazz, Hollywood movies, American slang, American machines and patented products are in fact the only things that every community in the world, from Zanzibar to Hamburg, recognizes in common." It is as true today as it was then. From the early days of Hollywood, an insatiable demand for U.S. cultural products--in advertising, fashion, film, popular music, television, and much else--has had a...