Mirrors are reflective surfaces usually made from glass with a silvery metallic backing. These surfaces can show fingerprints, streaks and spotting. Care should be taken when cleaning them to remove all smudges, streaks, spots and film.
The Superstition: It is very unlucky to use real mirrors on stage. An actor, also, should not look into a mirror over the shoulder of another, so that the two reflections are seen together. Doing this will bring certain mis-fortune to the one overlooked. It is also considered unlucky to wear real jewelry on or back stage. The Origin: Real mirrors on a stage have a tendency to play havoc with a lighting design, reflecting rectangles of light into places never inteded to be lit. Also, actors tend to be vain, and a mirror is simply an unneccessary distraction. Real jewelry, also, reflects the lights in obscure and unwanted ways. Also, jewelry is often lost on or back stage.