I teach "Pay It Forward" to my 8th graders. I bought a "Clean Films" version of the movie and show it to them. I always cry at the end
The concept was very successful with my kids. At 13 and 14, they are starting to become more politically and socially aware...and are excited and willing to make changes and take risks.
The website for the movie is very good and has some lessons. There is also a website for the foundation that has a lot of good PIF stories.
http://www.payitforward.com
http://www.payitforwardfoundation.com
Jenny