If you haven't already seen this film, I hope that you will take the time to see it.
It streams on Netflix currently (who knows for how long because, you know, it's Netflix). For anyone who can't access Netflix, I would go as far as to say you wouldn't regret purchasing this film from Amazon or another outlet.
It's a powerful message about meditation, human nature, and society. It focuses on Vipassana but I think it holds up equally well within the zazen framework. Watch it, at least two or three times. Let me know what you think of it.