I think a good model can be found in the film Caine's Arcade that documented the immense creativity of a young boy who turned a bunch of boxes in his father's store into analog arcade games. The film maker got the community to show up to play his games as a way to honor him for his efforts and help him realize his dream. The next step is what is interesting: the film maker set up a pay pal account so that people who viewed the film could donate to this 10 year olds college fund (which is now MORE than covered.)
What I like:
1) The film maker got involved. In this case in making a kids come true. In more complex cases maybe film makers can work with their subjects to develop solutions, prototype them and document that as well.
2) This film maker made sure that the light the shined on their subject was quickly attached to a way for people to get involved in a fundraising kind of way. I think this is a smart and viral approach and feeds into people's desire to what to help.