Saw this on Rocketboom today (yes I still watch it). Its a guy who gives away copies of documentaries like Sicko on DVD in a Subway station in New York. It seems like all the films he's copying and giving away are rights cleared (except maybe Sicko). Anyway I thought it was a great way to educate and enlighten people. Also get people talking and debating. He describes at the end how people will stand around and start talking to each other about the films and there meaning.
Without going into much detail, one of the elements for the ARG a few of us are still working on, includes the mass distribution of information in a public area. This might be a really good solution.