I enjoyed the book very much and was really looking forward to the movie. The movie is good, but for the devout true-to-story buffs out there, expect a lot of detail changes, including the end. Many plot changes, character changes, and several details that will make you go "WTF" (including the movie is made to be a sequel of DaVinci, where the book is a prequel") That being said, if you have NOT read the book, I think you will enjoy it for the first exposure to the story. A lot of detail was given to the ritual of Conclave, which was interesting to see played out on the big screen. Overall I enjoyed it, was a bit disappointed with some of the changes, but I still liked it, and would recommend anyone go see it.