The concept of the green screen, also known as chroma keying, was invented in the 1930s. Mainly, it was used in film production to create visual effects that weren't possible to capture on film.
Why the color green specifically?
Green is used because it is the furthest away from human skin tones. Using a color that's nowhere close to any natural skin tone can prevent parts of the actor from being keyed out.
Does the use of green screen have any effects on the actors' performance or emotions?
Indeed, it can be challenging for actors to perform in front of a green screen due to the lack of an authentic environment to interact with. This might require robust imagination and high-level acting skills, which could sometimes lead to psychological pressure.
Could there be any negative psychological effects from working in green screen environments too much?
Excessive use of green screen environments may potentially lead to feelings of disconnection from reality or add to the feeling of pressure. However, each individual may respond differently, and many actors adapt well and enjoy the creativity that these environments can inspire.