Blue Screen

A video and film-making term.

Quite often, the actors within a video or film are not actually located where they appear to be in the movie. For example, an actor may seem to be standing right next to a raging bear about to attack. Being in that situation in real life would be a bad idea!

So the 'blue screen' method was invented. The actors stand in front of a blue (or green) screen and act away.

Then the actual location is filmed without them being present.

Next, all the blue (or green) colour is cut / removed from the actor video and then mixed with the location video. Voila! they seems to be in acting in the real location.

The location is often not even real, for example a fantasy or science fiction film.

2020-10