Wall Street Journal Weekend Interview, A Hollywood Icon Lays Down the Law:

As he takes on the story of J. Edgar Hoover, the filmmaker talks about movie lawmen, his Korean War days and the flat tax. …

“But I’ll tell you when I liked [California Governor Jerry Brown]—and I wasn’t a registered Democrat—but I liked him when he was running for president [in 1992] on the flat tax. . . . A ton of economists, both liberal and conservative, have argued for a flat tax, but nobody’s ever had the nerve to do it. . . . It would simplify things, but simplification doesn’t seem to be in the human psyche.”