There's nothing new from Hollywood here. If anything it's worse
I agree with you, especially with the Davinci Code, but Hollywood can't ignore the success of "The Passion of Christ" and "Narnia", although you are probably correct that Hollywood will screw that up and put their own liberal biases in any new movies.
Narnia is an improvement. It may be that it made it because its religious tones are intentionally allegorized (is that a word?)
Da Vinci Code is unabashed virulent Catholic-bashing (and i would maintain Christian-bashing as well).
I would like to see them try the same with Scientology or Islam.
Some of us in Hollywood are genuine Christians, and we are making some real headway against the heathens.