I am in week 3 of teaching a 4-week beginner AE workshop:
After Effects for Video, at
Scribe Video Center, Philly's premiere community-oriented video learning center, world-renown for its socially progressive agenda.
This week we worked on green screen keys and color effects. I could not find any SAG actors who would work for free, so I found a few desperate hand puppets looking for some exposure who were willing to perform. I videotaped them against very crappy excuses for blue and green screen. It's encouraging to note that AE can take such sub-par backgrounds and still get a relatively good key (I used the Color Range keying effect, then added a Matte Choker, and a little bit of Simple Choker on top of that). Here is a still of what I started with:

I thought I'd post the end result. It's silent, it's silly, but kind of cute. This is just a practice exercise, not intended for public viewing really (I whipped it up in just a couple hours), but who knows, maybe I can help a starving puppet launch his acting career yet.