Ridley Scott? His movie, 'Kingdom of Heaven' basically trashes Christians and makes the Muslims out to be noble.
I didn't see Kingdom of Heaven and don't intend to...but consider this: A lot of people are under the (not completely wrong) impression that the Muslims who lived in some of the locations where all three monotheistic religions mixed were a completely different breed of Muslim than the ones that follow Osama. When they make those people look good, they may be trying to say, "See, this is what it could be like if we all just tried to get along!"
Of course, that doesn't excuse Christian-bashing, or even Crusade-bashing, since the Crusades were a response to Muslim invasion.