The book was changed so much that the suspence just wasn't there. The writers and director changed so much from the original book that it was hard to make sense of everything. The book's basic plot was followed - the Illuminati terrorizing the Vatican - but characters switching roles made it unbelieveable. Specific characters from the book were eliminated and their parts given to other people. Even the ultimate reason behind the terrorism was eleminated, so the plot did not make much sense. The Illuminati Diamond was even eleminated. Skip if you can and see it on DVD or Blu Ray. The Roman backdrop was great.