It is a very tough question to answer.

To the masses... It does help a little, but there is not such thing as "history changing" film. There are thousands of touching movies out there about war, about life, death and the misery this world lives in. Did they change our current situation? No. Did they create awareness? Well, apparently not in the right people, the people who have the power to make a HUGE difference, by thinking twice before bombing another country/town/city... Sadly, greed for money and power is more powerful than mercy.

anyway...

As individuals, yes, a film can make you aware of the many things that affect your life, can make you change the way you appreciate it, your family, or that have that one quote you just needed to figure out things in your life. Have you ever had that feeling?? Like there's something going on with your life, major decisions to make or whatever, and then by chance you watch X movie and there is a quote that rings a bell in your head...