Here is my first green screen attempt in this 2 minute short starring my 10 month old son Spencer entitled "Licensed to Drive":
I used After Effects "Color Range" to key and "Hue/Saturation" for the edges, didn't work as well as the tutorial examples that I found on the internet. But hey, its a good start!
I setup a green screen in my garage using Hardware Store lights and a green foam draped against the wall.
Recorded on a SONY TRV-950.