Green screens are used to add backgrounds to your favorite movies and TV shows, but why are they green? Here's an explanation ...

Using video editing software, the editor can then replace ... cumbersome process than making a few mouse clicks. For the green screen effect, studios could actually use specialized optical filters.

But what if you have limited space? [Fred Emmott] had about 30 inches behind his desk to work with, and shares what it took to make a green screen work reliably in a limited space. Even (and ...