One 'non reversed situation' they missed
I thought they blew it on one "reversed social situation" in the movie. They had Harry Bellafonte's son bringing home his lily white girlfriend to attend the charity event. This is a standard social situation in our world and would not really apply in the world of the movie.
They should have had the hot beautiful black daughter throwing her lower class stud white boyfriend into her parents' face. That would have been a better reversal.