If you're not an atheist before watching....
.. then you are surely one at the end of this film. This is the Christian version of Jihadists and radical muslims who are willing to kill themselves because of indoctrination.
I love to show this film in my philosophy lessons at the school I teach. Students are always shocked and horrified by the extend of religious fanaticism in the USA.
Of course this film creates a stereotypical picture of the Bible-loving-nutjobs that are gaining more and more influence especially on the right wing political spectrum.
It is very dangerous in my humble opinion to stress your personal belief so much that you push into other people's face. It's obscene and it's wrong - religion is the biggest problem of the 21st century, because it is used as an excuse to behave like a total a**hole.
"Now you see that evil will always triumph because good is dumb."