I always wondered how they were going to approach* making a move series of Philip Pullman's - 'His Dark Materials' novels as the books didn't pull any punches on the author's obvious contempt (not even thinly disguised hatred even) for organised religion (particularly of the Catholic variety). Sadly they seemed to give up after the first film (and hence book) where it was not quite so apparent yet. They claimed it was the credit crunch of 2008 that did for it but I've never since noticed Hollywood embracing austerity in its productions. I still wonder a bit if they just chickened out.
*As in getting it past the Bible Belt peeps in the USA, where Hollywood exists and such.