It’s a familiar scene from every police procedural ... Between the rooms is a two-way mirror, which allows the officers to watch the suspect’s questioning without being seen.

[Matt] built a black shroud out of foam board and put in two-way mirror. How does that help? Well, with the set up, you can put a very thin black web camera pointing up towards the mirror.

Is art art without an audience? An absurd, experimental comedy about a performance artist who wants to perform on one side of a two way mirror so he doesn't know whether he's got an audience. Stevie ...

Two-way mirrors are still useful today ... mirror shot doesn't necessarily need to use a real mirror. Like that scene from "Terminator 2" where Sarah Connor removes the chip from the T-800's ...