What the heck, we're all supposed to have a view on this, right?
I've not seen the film, but I've read the book. As far as I can tell, Dan Brown claims it's a novel. The book is a good novel, in my view.
Thirty years ago, I suspect most people would have known that there is much fiction about Christianity in the book.
So my thoughts are:
1) I'd really like to see more people, especially Christians, have a passing knowledge of Christian doctrine and practice. (But I've been saying this for years)
2) In my personal experience, the book provided a great opportunity to have a conversation about Christianity and I expect that film will do the same.
The more we belly-ache about the existence of the book and the film, the more ridiculous we look and the more we appear to favour censorship of ideas.