This might be worth looking into for your son: http://www.greenscreenwizard.com/GreenScreenZipper.aspx
It's all about green screen photography and video making. Not too expensive and they provide everything you need.
My 12 yr old son is interested in making videos and would like a small green screen and software for Christmas. Does anyone know of a program that is good for a beginner home user that won't break my budget? Thanks!