I am the LD for a production of Beauty and The Beast that is opening next week. I had planned on doing a few fun things for the magic mirror, but when I did research, I found that it is almost always just a
hand held mirror that doesn't have anything on it. The audience can't see it, so it really doesn't matter.
When the Beast is in his lair, and looking in the mirror, the lights come up in a gentle blue
wash with a gentle
haze on Belle in her room on the other side of the
stage.... the audience knows what is going on, and it is much easier for them to see and understand.
When I was doing some testing for another show, we placed different size tv's on the
stage and wanted to see what size things needed to be to actually be useful. For a small blackbox
theatre with 100 seats, we really needed at least a 32" tv for anything on it to be functional. For a larger
theatre, we found projecting the
image on a
screen at least 6' by 9' was needed.
One idea, the screens can be mounted in front of (or over) the
proscenium and the
LCD projector can be thrown from the
house electrics. This can also be used to display things like the Beauty and The Beast logos before the show, and can display credits after the show.