Joe! You never could play that thing!
Serpentine Shelly, Serpentine.
I'm not gonna hit ya...I'm not gonna hit ya...the HELL I'm not!
Butch Cassidy and the Sundance Kid?
Excellent guess, but wrong. Right genre, though.
It's John Wayne, but I have no idea which film...
Couldn't that be several John Wayne Movies? I'm going with North to Alaska.
I remember the scene - it was during a big fight in a big muddy hole (oil well?).
And I envision a bar. I strongly believe it's been done more than once.