1. Before he came out, there is a scene which two hands sticking out.
Check at 1:38 second. Two of his assitants standing besides the wall
holding a white curtain like block, his assitants actually were pushing two
hand shape tools or they were actually their hands.
2. While his assitants pulling down the curtains. One assistant going through
the box and it seemed there was no one there.
But check the order of pulling down three sides of the curtains and the direction of the light. During of closing of the last curtain, he is already in the box. The last curtain is not transparant. Audience didn't see shadows, they saw a film
3. There is shadow coming out of the wall.
The shadow is recorded films showing on the curtain.
4. He made a mistake. Check at 21 second.
Check out the hand direction of the shadow. It is facing against the light.
But when he came out, he faced towards the light and pulled down the curtain.
