Put this side by side with our craven fear of saying Christianity is true and Islamists are in error, and you have more than enough reason not just to boycott The Da Vinci Code - but also to deplore it.
How about just ignore it? Part of the marketing strategy was the inevitable "backlash" from the Catholic Church. They were counting on the criticism (a.k.a. free publicity).
Not surprised the movie was a flop. The book looked like a yawn.