About those banjos...
I have a funny story about the kid in Deliverance who played the banjo on the bridge, since I really was living around the corner from where the story took place (along where western N. Carolina and TN meet, more or less) and they'd hired locals for some of the "inbred hillbillies" parts. Hard to find that look in Hollywood, I guess.
That kid on the bridge couldn't play banjo, so in the movie it's someone else's arms reaching around him to play it. But he sure looked right for the part. I guess this means that somewhere on the planet there's someone who has a movie credit for being the banjo-reacharound guy in Deliverance. Though I might leave that one off my filmography, if it were me.
Anyway, since he wasn't an actor (or couldn't find any other work after Deliverance) nor a real musician he had a job as a maintenance guy at a nearby rafting outpost where I sometimes ran merc trips ("mercenary" trips, i.e. for companies you don't work for when the one you do doesn't have any for you).
So I'm there to run a trip and a busload of the tour group they needed extra guides for rolls up and unloads a bunch of insufferable geeks from the suburbs (geeks=what typical rafting customers are called behind their backs, even if not from the suburbs). A few made the obligatory jokes about hearing banjos (uh-oh! hahaha!). Almost everyone makes that joke when they get there. A bunch of them laughed (almost all of them laugh at it, too). One guy started humming the opening bars of dueling banjos to even more laughter and as they were all enjoying a good laugh about the apparently-amusing implication that there might be a hillbilly gang-rape on their rafting trip the kid who pretended to play the banjo in the very movie they're funnin' about steps out of the raft barn right in front of them.
They all see him at the same time and instantly go silent, stop dead in their tracks, their eyes get wide, and they all start looking at each other with the funniest looks on their faces I've ever seen, sort of a mix of "Holy shit!" "WTF?!" and "Is this a fucking joke?" all mashed together. No one wanted to be the first to say anything and I barely held it together until I got behind a bus and then lost it. It was one of those rare Perfect Storm kind of moments, and I still laugh out loud whenever I remember it. They didn't end up in my raft so I don't know how things went after I took off to hide behind the bus to laugh or what they thought after the initial encounter, but what I saw was good enough for me.