Three times during the movie, narrator says "This is the last time you will see..". Then each does appear again later, though briefly.
The exterior shot of a red brick and white column courthouse where Frances is tried is actually the courthouse in Charlottesville, Virginia, though the movie takes place in North Platte, Nebraska.
Age of majority in Nebraska is not 17. It is 19. Something a teacher would certainly know.
The film is set in North Platte, Nebraska but an exterior shot of Nick's office building shows palm trees out front.