Last night I watched the film Sling Blade (1996) for the first time in years decades and liked it all over again. It has linguistic appeal too: the characters speak in strong dialects with idiomatic expressions.
More than once the main characters say how much they like how the other one talks, as a way of conveying their mutual fondness and friendship:
There are two items in particular I want to note here. The first is a moment of mild prescriptivism at a family table.