Across the whole spectrum of media - film, TV, music, books, theatre etc. - the portrayal of religion is quite fascinating. But considering that religion's impact on music has mostly diminished from its previous highpoints (Lady Gaga's attempts at 'blasphemy' excepted, even if she was heavily aping from Madonna...), and that I can't imagine most PC members going to the theatre or - heaven forbid - reading books, that leaves us with film and TV.
Hollywood has a reputation for being liberal-minded and, for the most part, it's justified. People who achieve great creative success in the entertainment industry, on the whole, do so by avoiding the subject of religion, or presenting the characters in their entertainment as a-religious. Note that doesn't mean that they're necessarily atheist: religion is just never mentioned as part of the storyline, or as part of the character. Which makes it interesting when film and TV shows do explore it, 'cause it inevitably ends up dominating the show/film.
Take The Simpsons. I know, I know. I harp on about this show too much, and I'm as surprised as you are that I haven't inserted Helen Lovejoy's lament to think of the children into this post so far. But in its glory days, its focus on the subject was really refreshing. The titular family were church-goers, but most of them were very apathetic about the whole enterprise; the reverend was seen as a very, very fallible human being, and the church itself as an institution was seen both as a sanctuary from the crazy antics of the townspeople but also as a crazy entity in and of itself. Episodes focused on the existence of the soul, whether to believe in God or not, the 10 commandments, the loss of faith, and much more. But it was all done in a sympathetic way that didn't belittle the religion itself: often, just the followers in and of themselves. I'm not saying that media is no place to criticize religion, but when it's portrayed in a more affectionate way, then greater entertainment often arises as a result.
Like in South Park. Similarly to The Simpsons, but possibly not on the surface, South Park treats the concept of faith with surprising sensitivity. Religion, on the other hand - and especially organised religion and dogma - gets a complete takedown. Most of the show's most famous episodes have concerned religion, whether it be a statue of the Virgin Mary apparently 'getting her period', a journey into the secret tombs of the Vatican, or the complete evisceration of both the Mormon and Scientology religions. The Mormon episode, in particular, sticks out especially for its ending, which comes down as very pro-faith, even if the whole concept of what Mormons believe in was just crushed by one of the protagonists. That episode helped inspire the hit-Broadway musical The Book of Mormon, which stretches these themes out even more and to greater comic effect and pathos.
I could literally ramble about this until the cows came home, but I guess that's as good a place to leave it as any. If religion were treated more honestly and with less snide contempt in film and TV, that would certainly be a step in the right direction. Unfortunately, I don't see it happening any time soon.