The real question is not how wrong the work is but how accurate it is. The movie is a good example of how much power the curch has. Remember, not to long ago people were killing over what religion was right and wrong. The Holy Wars, and almost any was that wasn't over land disputes were about religion. Just think if people began to believe that the church was no longer needed.
All religions have stories that are contradictions.
If you believe that Stimata is a poor movie, maybe you don't understand the impact that religion still has in the world. Religion in American is very diverse. Religion in many other countries is still the cornerstone of their culture. The idea that the movie portrays is very interesting and should make you think unless you are ignorant. The movie is good and shows that religion is an important and difficult issue to deal with and that not all movies are for pure entertainment.