Social conditions that spur large numbers of people into action are ignored in favor of a Hollywood version of history focusing on one conquering hero. Since a movement for social change is embodied in its leader, death of the leader means death of the movement.
I think we grew up thinking that the funniest things on TV were the old, serious movies. I always liked the Marx Brothers, but the thing that always made us laugh were movies like Zero Hour. That's what inspired us.