@Mr_NutterButter this movie. might ring a bell. although it seems like you're a few years younger than me so maybe you don't remember it even coming out.
i don't really know too much about it, just that it's anti-religion and religious people tend to think it's evil or something. but, being anti-religion myself, i do wonder if i'll like it. maybe i'll watch it and report back.
it's adapted from a book series, the writer is an atheist, and from what i can find it's like the yin to chronicles of narnia's yang.