A few months ago on Conan, the late Burt Reynolds shared the fantastic and funny origin of one of many iconic moments from Deliverance (1972): "He got a real purty mouth ain’t he." Watch the clip below. And as a bonus, here's the story of Deliverance's inbred banjo boy!
https://www.youtube.com/watch?v=nLEL-Gewt6E
(via Laughing Squid)