I finally watched Fahrenheit 9/11. Overall, I enjoyed the movie, and appreciated the structure that any effective persuasive communication would embody: logical appeal, ethical appeal and emotional appeal, in that order.
Although knowing that the movie is entirely propaganda and every point must be taken with a grain of salt [since really, who really knows the truth in this matter to make a reasonable evaluation?], I could not walk away without thinking:
"I wonder if we will identify the 'mark' when we see it..."
Or to continue the thought, albeit along a somewhat horrifying train of thought, "I wonder if we've all already taken the mark but don't know it yet."
I'm not a radical apocalyptic type of person, but I must say that the movie was quite unsettling for me, and it's difficult not to think about the end times... "Who is like the beast? Who can make war against him?" -- Revelation 13:4
... Hm... are we ready?
Of course, this is probably just another part of the emotional appeal of the propaganda... who knows?