Blue screen before/after

I recently created an iMovie tutorial class on Outschool, and to summarize the windows in iMovie, I stood in front of an image of iMovie's main timeline and pointed out the important points like a news weatherperson.

But to do that, I needed to stand in front of a blue screen, so I could add the graphic behind me in iMovie.

And to do that, I hung a blue tablecloth on the wall. It was as low tech as possible. I didn't do any special lights! I was surprised at how well iMovie cleaned it up. 

The before:

The after: