While the quote 'Squeal like a pig' is the darker legacy of 'Deliverance,' the film's musical highlight is the 'Dueling Banjos' scene. This wordless interaction between a city man on guitar and a local boy on a five-string banjo served as a tense introduction to the cultural clash of the film. The banjo used was a standard bluegrass model, but the way it was used in the 'call and response' format created a sense of mounting dread and competition. Interestingly, the actor playing the boy, Billy Redden, did not know how to play the banjo. A local musician hid behind him and reached through Redden's sleeves to play the notes while the camera filmed from a specific angle. The banjo became a symbol of the untamed wilderness and the hidden dangers within, making it one of the most famous instrumental 'characters' in movie history.