Here are some people talking about Noah. I disagree with all of them, but I disagree with Karen Covell, founder of "Hollywood Prayer Network", the most. She says:
Movies aren't meant to preach. Movies aren't sermons.
Second, movies are meant to preach! Cinema, for better or worse, has always been a medium that conveys a message. To be sure, the stories are stories, and should not be reduced to a few didactic point. But the stories are ideological all the way down. The question is therefore not whether a film is "preachy" or not. The question is how and what the film preaches.
In the end, Covell's statement actually contradicts the agenda of HPN, which speaks of Hollywood as "the world's most influential mission field." That's a bonkers description, of course, but it does at least acknowledge the reality that films, just like sermons, are intended to influence.