Special effects in the stage دکھائیں 

In case anyone ever wondered how they do some of the special effects. From a theatre brat upbringing, most of the big ones like the Mirror and the chair are pretty easy to figure out, though to people with a normal upbringing maybe not.
الفاظ مطلوبہ: phantom of the opera, andrew lloyd webber, special effects, sfx, poto, stage version, theatrical effects