They all brought money into Mississippi from Hollywood filmmakers. We should be grateful for both. For motion pictures to deal with sensitive subject matter is not usual. Conflict, controversy and tragedy are, after all, excellent themesnot only for movies and books - they are also fairly realistic in everyday life. Depicted from afar, it's easy to disassociate oneself from the subject, to form an opinion based not on the work itself, but on what you readand hear about it.
People do that about Mississippi all the time.
The difference in these movies is that Mississippians got an up close and personal chance to see the movie-making process at work. Many ofus already knew the basic story lines. Some people were extras. Some portrayed themselves. A lot of people made a couple of bucks.