I saw it. I liked it. I think I am going to see it again...after X-Men, though. The hype is easy to understand if you think about it. The premise of the book refutes the deity of Christ, calls the early Christian church false, and pretty much says the Catholic church is responsible for covering up the secret in order to maintain power. What isn't there to hype?
I don't agree with ANY of Dan Brown's hypothesis, and even a cursory bit of research into the Knights Templar, the Crusades, Emperor Constantine, the history of the Bible---pretty much every historical fact the book uses to "prove" its premise--essentially disproves it. It is fascinating, though, to see the warping of small bits of truth into full-blown conspiracy theories, and it is troubling to watch and read the reactions of those who believe it without taking the time to research it themselves. After all, if it is written in a book, played in a movie, and plastered all over the media it HAS to be true. I was waiting in line and overheard someone say "I have never set foot in church after I read the book, it is that disturbing." Much to the chagrine of my friends, I asked him if he had even looked into anything Dan Brown was talking about. His answer: "Why should I?"
THAT is disturbing to me.
But the movie is just like the book: all action until the mystery solved, and then once there is no more suspense to keep you reading, there is no more reason to read the book, especially after the whole Teabing discussion of what the Grail actually is. (I laughed the first time I read the book.) The first two hours are cool, but the last 20 just suck. (Of course, that is based on a one-time viewing, so it might change after I see it again.)
In the end, I am comfortable with people calling me an idiot for believing without any sort of empirical proof that God exists, that Jesus was the son of God, not a mere mortal, and that this is just an entertaining story with the fallout being an even more interesting sociological analysis. It's okay.
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Superman wears Jack Bauer pajamas.