LOS ANGELES -- Pay up, Frodo. So says Saul Zaentz, a Hollywood producer who has sued New Line Cinema for $20 million in royalties from the blockbuster "Lord of the Rings" trilogy. According to the suit, filed Wednesday in Los Angeles Superior Court, Zaentz says New Line Cinema owes him that amount based on a partial audit of the first movie in the series, "The Fellowship of the Ring."