I saw the movie at 10 am. For so early on a Friday in Oklahoma, it was a pretty full movie theater. There were people of all ages, though most seemed to be in their 20s or 60s. The crowd loved it. You could hear them gasping and groaning when they learned things they hadn't known before. And for such a jingoistic corner of the country, I think the parts with Lila Lipscombe really made an impression on them; there was a lot of sniffling. There was a camera outside when we left as well, which was a pretty nice camera but not with a local news station (there were no big banners or anything). My husband thought somebody was trying to get people to register to vote.
My personal impression of the movie is that it is fantastic. I'm sure it will get a lot of crap in the coming weeks from all sides, but this is the best film Moore has ever done. He's been sensationalistic in other movies to get his point across, but in this one, I felt he practiced a lot of restraint, letting the facts speak for themselves. It makes the movie that much stronger. There may be a few weak points, but can we really complain when this is our first chance to truly be heard? I'm almost excited to hear what the Right could possibly pick out of this film in order to try to discredit it.
If someone were to ask me to explain to them my view of Bush's presidency, I would tell them to watch this movie.