This is a great story.
I got the news Dan is writing a sequel, Da Vinci Code 2!
http://www.danbrown.com/novels/davinci_code/articles/thriller_instinct.html
'Brown is writing a sequel to "The Da Vinci Code," tentatively due next year, and declined to be interviewed. But the portrait that emerges from published accounts, his website, and friends and editors, is one of a fairly shy writer, a married, 38-year-old former high school teacher from southern New Hampshire who wrote three modestly received novels, then stumbled into superstardom with the fourth. "He's an extremely charming, very smart, preppy guy," says Rubin, "like the college professor you never had. He's impossible not to like."
They should make an Angels & Demons movie too.