Research

What is a green screen? : A green screen is a sheet of cloth that can be used as a back drop which is used to effects onto films, for example the news uses a green screen for the weather, and other segments. also used in Hollywood movies.


How does it work? :The magic of video effects and technology,allows you to superimpose the subjects onto a virtual backgrounds, and place them over a animated digital backdrop or teleport them to a  desert oasis, or  shrink down a full-grown man and turn him the size of an ant, you could use  visual effects to make him fly about in the sky like a superman or you could simply simulate your own TV weather report. 


Name three films that use this effect? :
Spy kids three:




Avengers




Alice in Wonderland


green screen before and after