I used a World of Springfield Movie theater play set, a bunch of random Gundam parts and pieces, an anime girl for Princess Peach's body, and some Rement food miniatures to finish of the piece. I also wired up a piece of EL (electro-luminescent) panel behind the movie screen so that it really looks like they are watching on the big screen.
If you would like to see more pictures, please go to My Flickr Page. I have this available for purchase at My Etsy Shop. The last one of these sold out within a day, so if you are thinking of picking this up, please hurry. Thanks so much.