<p>"If you want to send a message, call Western Union," said Hollywood pioneer Samuel Goldwyn to filmmakers and stars who sought to use their movie projects to advance some political agenda. Although the telegraph is a largely irrelevant alternative in this Internet age, the thinking behind Goldwyn's advice remains sane and solid: Political preachments, on or off camera, only interfere with the entertainment value of creative work by major Hollywood stars. Recent comments by some of the prime participants in the triumphal box-office hit The Lord of the Rings: The Return of the King illustrate the uncomfortable implications of trying to impose timely messages on timeless fantasy.</p>