i worked a david copperfield show as a firewatch. he did 4 shows in 2 days. all the shows and tricks were all the same. i got to position myself where i wanted, even behind the curtains.........its no magic at all, all tricks and props! i was surprised at how easy it was for him to make a bunch of people disappear........pure misdirection and lighting. i did have to sign a waiver as to not reveal his tricks....and thats what they were tricks! not magic!