The movie hasn't even been released, but a Catholic group has already staged a protest in Frederick.
In the late '70s, a group of Muslims seized a theater and an office building in D.C. to protest a showing of the 1976 film "The Message," which was about Muhammed. (They got worked up over nothing, since Muhammed didn't even appear in the film.)
Personally, when it comes to artistic endeavors branded as blasphemous, I don't take anyone else's word for it. How about a film festival of movies that have been attacked by demagogues from different religions? Besides "Da Vinci Code" and "The Message," we could include "Life of Brian," "Last Temptation of Christ," and "Dogma." Maybe a movie version of Salman Rushdie's "Satanic Verses" if a studio somewhere in the world has the balls to stand up to the Iranian mullahs, or any Bollywood films from India that have upset Hindu or Buddhist leaders. The advertising tag line could be, "Don't believe the hysteria--judge for yourself."