The Color of Special Effects & ‘Aliens’

Sulaco in 'Aliens'
Sulaco in ‘Aliens’

The majority of filmgoers are familiar with the use of blue- or green screens in filming effect shots in big budget films such as Star Wars or the Matrix. But with the advent of digital compositing in post production, a wide variety of colored screens can be used depending on the color of the foreground objects that are shot in front of it. So there are blue screens, green screens, black screens and even red screens in some cases.

The most famous of these is the blue screen. Here we will explore the process involved in replacing those “blue” with an image.

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