@The-Apostle: From a film perspective I could see where a father doing what he can to keep his wife and children safe is more compelling than trying to save adults who should be able to look after themselves. Not mentioning God in biblical story? Yeah that's harder to defend.
Actually though on a side note, much like Job, the story of Noah is one of the more difficult stories to tackle. I mean God condemns everyone in the world (with the exception of Noah's family) to die because they are "all" so very sinful. I get that God is an all-knowing all-powerful being, but that is getting pretty fucking harsh with the world of punishments at his disposal to choose from.
I'm not sure what would make Job a difficult story to do. We've had similar secular stories. Basically a guy loses everything and pretty much hits rock bottom.
In the Biblical story, God allows Satan to test Job's faith, and Satan strips him of everything in his life but Job remains faithful. I wouldn't mind seeing a movie done about Jonah, though I'm not sure how they'd pull it off.