Found this section of a personal review of F-9/11 very interesting:

....i will say it's most definitely NOT the feel good film of the summer. when i saw it portland, leaving the theater, unlike a lot of films i see where people are just yaking and off to home to relieve the baby sitter of the kids, or off to beer, coffee or the mall food court, people stood around in groupings, all with stunned, sad looks on their face, and a few grown men and women openly sobbing over what they had just seen.....

I saw nothing of the sort at the theatre I attended, maybe because it was in Orange County, CA. I am wondering if others have had similar experiences as described above. If so, kindly leave a comment.