I usually ignore LJ's goofy "question of the day" things, but today's struck me as potentially interesting.
The one movie I think everyone should see is Birth of a Nation. It is one of the clearest possible demonstrations of how film can be used to powerfully express abhorrent ideas.
I'd like to think that if more people saw this nasty ol' flick, you'd get less "Well, it's just a movie, it doesn't really matter!" bullshit out of J. Random Moviegoer.