I went to see Danny's film today here in Seattle, and it was excellent. The showing was a fundraiser for Seattle's Sudbury school, The Clearwater School, where my dd (and in the fall, my ds) is a student. The movie did a great job of giving an overview of what it's like to be a student at a Sudbury school. The kids were very real (and often funny!). I fell in love with the Sudbury model all over again. I also watched the trailer on boingboing.net; it is fairly long and gives a good feel for the documentary. If you have a chance to see it, I highly recommend it (I believe you can purchase it online at newamericanschoolhouse.com and at fairhavenschool.com).
And I know this part of the thread is a bit cold now, but I find that my dd doesn't really interact much with the older students because she is not interested in the same things as they are. Well, with the exception of the computer, but both my dh and I are gamers and internet fans, so I assume she got that from us.
The kids she interacts the most with (at least, the ones I hear stories about) are between the ages of 5 and 10 (she is 7 1/2), although she does love the little boy of one of the staff members. He is...hmm, probably about 18 months old, and all the kids love to talk to him and listen to him say funny things, help him out with things he is trying to do, and so on. I think everyone who sends their kids to a Sudbury school has an occasional doubt or three, but for me, watching my dd follow this path so far is worth it.
Alright, I've run out of steam, but that's my take on things. See the movie if you can, it is a great way to see a Sudbury school in action.