Bruce Almighty and Dogma, although not really Christian movies, both were definitely movies about Christianity.
I liked Bruce Almighty since it did have some really good points about our faith, but of course it wasn't perfect. I only saw it once a while ago and haven't seen the deleted scenes, but I would like to see it again.
But Dogma I couldn't stand. It pretty much took parts of Christianity and turned them into whatever they thought would make a good movie. I guess I just can't appreciate bad jokes when they're making fun of what I believe in.