I just came back from The Da Vinci Code movie in Virgin Cinemas Roppongi Hills. It was a late show 23:30-26:00 but there was a lot of people watching it.
I found it interesting, maybe 3.5 out of 5. As most of Japanese, I don't follow any religion and that makes it really easy for me to see it as just an entertainment. The movie was pretty fast-forwardish and it should be very difficult to understand if you haven't read the original novel, but that shouldn't be a big problem for this million seller novel. i think It's a good assumption anyway and it's a right thing to do to cut the most of boring code breaking tricks.
And at least, Audrey Tautou is so cute.