Sure, it's a novel, but the startling claims in The Da Vinci Code about a married Jesus, a Last Supper with a secret message and shenanigans within the Roman Catholic Church have left readers asking: Just how much of this is true? Just in time for the movie, U.S. News separates fact from fantasy on a range of Code-related questions, from the inner workings of Opus Dei to the truth about Mary Magdalene. Answers are based on a U.S. News Special Edition, Secrets of the Da Vinci Code, and on the book on which the special edition is based, Secrets of the Code: The Unauthorized Guide to the Mysteries of the Da Vinci Code, edited by Dan Burstein. Think you know the answers already? Click on the links to the right and test your knowledge of the world of the Code.