For all the movie lovers :
If you haven't read the book, definitely watch this fantastic suspence thriller. You'll be surprised by the twist and turns. It's fast paced, thrilling, clever with superb background music by Hans Zimmer. You'll be on the edge of your seats.
For all the book lovers :
You'll be a bit disappointed with the movie. It's great but not as good as the book (as always). Storyline is justified but all the monologues, character development, background stories, brilliant description of the monuments and sculptures are missing. Even some important characters are also excluded from the movie. You'll feel less connected to the characters. There are some changes in the movie compared to the book. But it's not their fault. To squeeze 600 pages book into a 2 hour movie is in itself a herculean task and that demanded these changes. Still I believe it could have been made much better.
Overall, even if you've read the book it's still worth a watch. Watch if for the stunning visuals of Rome and Vatican and awesome background score. But if you've not read the book, definitely please read the book first.