This sounds like a movie that is very much worth seeing.
It is. I highly recommend it.
Reason is only possible with reasonable people. You can never reason with a fanatic or zealot.
Very true. -- To defeat a fanatic, you must act.
-- I think that the movie makes the point that with a bit more luck, the passengers of flight 93 could have saved themselves.
You must act and remember who your true friends are.