In the film "Kidnapped",starring Michael Caine,there is a moving scene at the end,where Caine,as Alan Breck Stuart,having surrendered himself,looks out of his cell window to the hills and mountains that he loves,and there is a lovely song,sung by Mary Hopkins....very moving,as I recall (a similar scene in "Tom Horn" is redolent ).
    As to "Duelling Banjos" ; I don't know about Mr Smith and his "Feudin' Banjos", but.....Earl Scruggs and the Foggy Mountain Boys played something called,I believe , " Mocking Banjo", and it sounds REALLY like Duelling Banjos to my ear !!