re: Best/Worst southern accents you've seen in TV or movies?

I can always tell when actors did little research on what a true cajun accent sounds like. All they have to go do is hang out in Lafayette for a week. They always assume it has a southern drawl like the rest of the south but it doesn't. You can fake it pretty much by never pronouncing the "th" sound. Use a hard T sound for TH at the end of the word and a Hard D for a TH at the beginning of a word and you pretty much can get away with it with just that. No fake drawl necessary.

And you are correct a True new Orleans accent is closer to NY/NJ think is a port city thing. But Hollywood forbid they try to be accurate.