How badly are Christians portrayed in Hollywood?

Yes, I know that programs like Focus on the Family have beaten this to death, but it is still worth considering. Why does Hollywood believe it is okay to beat on Christians more than any other religious group? Is it that familiarity breeds contempt, or that the only overtly religious figures who catch the attention are stereotypes and hypocrites? Or is it simply lazy writing? (Warning, link has some non-family-friendly language.)

On the other hand, we’ve got Conservative Christians who are statistically far and away the most generous people on the planet (whether you’re judging by missionary work or basic tax returns) consistently being portrayed as hateful villains often using scripture to justify horrifying acts (see nearly every spiritual horror/psycho thriller movie made in the last three decades). Disregard the fact that people like my middle-class father annually give more to charity than President Obama and Joe Biden combined...

I am interested to know the opinions of Mod-bloggers on this. I think the comment about the charitable nature of Christians vs. the current president/vice-president is significant, too. Mostly because I know a few (non-rich) people who have confirmed the same thing about their own giving when compared to our leaders, including Hollywood's leaders.

Viewing Ads to Help Others

While on Facebook, I noticed that one of my "friends" added an application called iRipple. iRipple links back to the website, Ripple. Ripple allows you to support four different charities by clicking a button to view an ad. Although I did not call up the charities to verify, they say that 100% of the ad revenue goes to charity and are authenticated by the charity. One of the charities, Oaktree Foundation, appears to be a Christian organization. Unfortunately, Oxfam supports abortion, so I prefer not to click on their button.

This site is similar to The Hunger Site, only it is a much cleaner interface and instead of once per day, you can click each button about once every 20 minutes. I believe there was some talk on Mod-Blog about The Hunger Site and wondering how much of the money went to the charities. The Hunger Site also claims to give 100% of the revenue from clicking to charity.