I've seen this method across several BTS videos. It's a great idea since you could show the actors what you're going for and figure out adjustments. I'm curious though if it helps to throw other stuff in like costumes and lighting to experiment.

I'm really curious to see how it'll fare with video. I'm in need of a new camera right now: something that'll won't break the bank, still allows an adapter for my EF lenses, and produces great images for projects. Too much to ask? I guess we'll see.