Because
Calvinist Movie will probably end up being discussed like a BDF topic. It will make a few a little angry because their fragile theology will be challenged and refuted, even if only via the trailers:
[video=youtube;axjzInqdzBI]https://www.youtube.com/watch?v=axjzInqdzBI[/video]
For the record, I've yet to watch the movie, but have ordered it, and, LORD willing it should arrive this weekend and we will be able to see it.