I hadn't heard about this movie until I saw some short trailers on our cable's on-demand (the movie is now on-demand from our cable provider). The little I gathered from the trailer is that a college class is assigned by a professor to write a paper titled "God is Dead", and a student in that class says he cannot write it since he is a Christian.
I'm not sure whether I want to see it... Since the script looks more like a story and not a documentary, the director and others involved with the film can take poetic license for certain things (even if the story is based on an actual event which I'm not sure whether it is in this case for this particular film), esp. if it helps the film fit a particular viewpoint. Thus films like this often feel more like propaganda for a particular religion, and aren't really an academic debate on the topic.
I don't know what "rottentomatoes" is that Keroro mentioned in this thread.
That is a site that does reviews and previews of movies, TV shows, etc. (see
http://www.rottentomatoes.com/) I'm guessing that the low rating is in part due to the lack of interest in the general population for watching this type of movie. I also read some of the reviews on that site, and the main issue that most of the critics had is similar to why I'm hesitant about watching the movie myself; the critics said that the movie was too predictable and not really credible in terms of what would happen in the real world. Instead of portraying everyone as a human with both good and bad in themselves, the movie tends to have all Christians depicted as being wise and caring while all non-Christians (including a Muslim, who in the real world would also be against claiming that "God is Dead") are shown as being cruel and self-centered. Essentially they take poetic license to contrive everybody's actions and thoughts in order to justify their point of view.