RiCH HALL's THE DiRTY SOUTH. A BBC Documentary on Hollywood's Exploitation of The South

"Rich Hall sets his keen eye and acerbic wit on his homeland once again as he sifts truth from fiction in Hollywood's version of the southern states of the USA. Using specially shot interviews and featuring archive footage from classic movies such as Gone With The Wind, A Streetcar Named Desire and Deliverance, Rich discovers a South that is about so much more than just rednecks, racism and hillbillies."

Part 4, for some crazyass reason, is non-embeddable. 
Go here.