Not all analysis of the film Deliverance comes from the period in which it was made. A follow up to the film was undertaken by Marketplace, an organization focusing on radio and podcast broadcasting. Some of its reporters and associated documentary producers visited Rabun County, Georgia forty years after Deliverance to examine its impact on the area.
They found that the film produced mixed feelings in the area. The amount of money that it brought to the area is not insubstantial. This was done both by making the county a tourist destination, as well as a style of resort area, with wealthier non-natives buying or building lake side homes as a result of the natural beauty of the area as portrayed in Deliverance. Moreover, people like Billy Redden, who portrayed the boy who participated in the Dueling Banjos sequence, was glad to have participated in the film.
However, the documentary producers also found that the film negatively impacted the area. Among other things, people from Rabun County were often denied jobs when it was found out where they were from on the basis of the stereotypes perpetuated in the film. Additionally, although the film brought money into the region, it was not evenly distributed. Billy Redden, while appreciative of his role, received almost no money from his role in the film.

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HR: https://www.marketplace.org/2012/08/22/life/40-years-later-deliverance-causes-mixed-feelings-georgia – article