It’s pretty bad, not only the premise of the movie but the acting as well. They really don’t care enough to do research enough to do a believable southern accent. The trailer that I saw had the actors doing one of those accents that non-southerners think southerners sound like. Believe me, I’m an Appalachian American from eastern Kentucky, GO BIG BLUE, and these accents are only believable to non-southerners.
In addition to a Kentucky accent, there is an accent for each state. And the Black people from the Shenandoah Vally, Virginia have a wonderfully distinct and pleasant accent. A modern day Henry Higgins could place the accent to the specific holler.
What county in Eastern Kentucky? I tried to go to school in Breathitt County in 1973.