I believe this is a fictional movie, not to be mistaken for real life.
I’m more concerned about its effect. With the Davinci Code, Brown’s response was, “Who’s to say the essential elements of this book are fictional.”
They can make their movie. Had they any guts, they’d be distorting some of the facts about Islam instead.
Come to think of it, you don’t have to distort much about Islam in order to write a good horror film.