I agree that it is extremely important for educational and awareness videos to be participatory, rather than simply extractive. Under the USAID project I work on, I've developed a toolkit for development practitioners to use to help them use video in ways that are more participatory. Although the focus is for agricultural extension, it can really be applied to any sector of development. The toolkit can be found online at http://www.ictforag.org/video. The organization InsightShare also does some good participatory video work in a number of countries.