9. JFK
"Yep," your friend said sadly and paused significantly. "What?" you asked after a few seconds, forgetting who you were talking to. "This just shows it, man. We can't do anything about anything. THEY have it under control. The military-industrial complex. They killed John F. Kennedy, Martin Luther King Jr., Bobby Kennedy, and God knows who else. Everyone's in on it. They screwed America over. It was the end of innocence in America. And you think we're ever going to see those papers? No. We have nothing." Since your friend was so completely deflated like he is every time he watches this movie, rather than bringing up the documentary The Atomic Cafe you instead recommended Swing Vote, the hopeful quirkiness of which always brings your friend right back from the brink.