Sergio Leone's IMDB Page
Notable films : A Fistful of Dollars, For a Few Dollars More, The Good, The Bad, and the Ugly, Once Upon A Time in the West, Once Upon A Time in America
Cecil B. Demille's IMDB Page
Notable films : The Ten Commandments, Cleopatra, Sign of the Cross, The Greatest Show on Earth
Alfred Hitchcock's IMDB Page
Notable films : Vertigo, Psycho, Rear Window, North by Northwest, Rebecca
Lars Von Trier's IMDB Page
Notable films : Europa, Dancer in the Dark, Antichrist, Dogville, The Kingdom