re: Why has a major movie never been made about Katrina?

You could have thousands of people lined up screaming, "oh no a flood is coming, o no!" Then someone screams, "hide in your basement." "We don't have a basement!" "Then dig one,hurry!" A frantic scene as thousands of New Orleaners dig basements to escape the coming flood.
The mayor stands at the city hall screaming, "don't move them buses!!!!, gas is expensive!" and the governor stays at the TV in a zombic semi-coma, mumbling "black water." While our star in walking in hip deep water with his case of beer and a big smile. "I gots me some beer!"