Yes, I do believe fiction has an impact, particularly on young, impressionable minds.
In addition, I wouldn’t get all that upset about the repeated attacks on Christianity in films if it weren’t for the fact that these supposedly iconoclastic writers are too cowardly to attack any other faith, particularly Islam. It deeply offends me to see people like Dan Brown and Ron Howard beating their chests like Tarzan and acting as if they’re courageous for producing material that makes Christianity appear ugly and fraudulent. We all know they wouldn’t dare do such a thing to Islam. They wouldn’t even do it to a passive religion such as Buddhism, because they know the rules of Political Correctness, and those rules are:
1) It’s okay to denigrate Christianity. And if people protest the denigration, it’s because they’re “intolerant”.
2) It’s not okay to denigrate Buddhism, Hinduism, Native American religions, etc., because to denigrate them is “intolerant”.
3) It’s unthinkable to denigrate Islam. It’s “intolerant” to do so, plus it can get you killed.
I have no idea why those people do as they do, I just don’t understand getting offended by this kind of stuff.