From the furor over The Da Vinci Code, you'd think World War III was about to erupt. Dan Brown's blockbuster - first the book, now the movie opening today - has ignited a fight among many Christians over whether it should be shunned as blasphemy or used as a starting point to win converts... The bare-bones story, for anyone still in the dark, is that a professor of religious symbolism unravels clues to "discover" that Christianity is built on a falsehood: Jesus was not divine. He married Mary Magdalene and left descendants. This has been covered up for centuries by the Roman Catholic church and assorted men of history... The Da Vinci Code is entertainment, not theology. If it arouses intellectual curiosity, so much the better. As author Brown has suggested, if Christianity has withstood heretical ideas and fierce attacks through the centuries, it needn't have to worry about a thriller writer from New Hampshire.