Monstrous Illusions

From: Vera
Description: Where can illusions in a movie theater come from? From the screen, of course. It seems empty though. Maybe you’re supposed to look at it through special glasses? Please bring me some tools - I’ll fix the polarized glasses I stepped on and look at the screen.
Completed: I fixed the polarized glasses and looked at the silver screen. Through the glasses, I can see the images of monsters moving on it, coming out of the screen from time to time and becoming real. What a trouble! Without the glasses, the screen appears blank.