In the Heat of the Night--hope for better racial relations
there are so many but probably, The Accused for many different reasons. the scene where she's getting raped in the game room and others are egging it on and then others who just ignore it. putting the rape aside, that mentality alone is ******* common place - you can't trust people.
oh and yeah mob mentality
My favorite movie is The Croobs (?), because t hey live in darkness initially and come to fully appreciate living in the light.