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Green screen and blue screen technology has been used in the film production industry since approximately 1930. The technique also called chroma key compositing or chroma keying has been widely used in weather forecasting. The technique in short blends two images or frames together. The areas where the screen is blue or green will be replaced by the image that will actually be showed on film. Therefore if the person in front of the screen wears blue or green clothes the clothing will then appear to be the colour of the actual image that will appear on screen. As complicated as it sounds, green screen production has pretty much revolutionised the way film production companies produce films. As it can save money and time, it also gives the director far more room for creativity, as images can be changed and added accordingly.

When the idea of green screen was born, the whole process was a laborious one, and in those days it went by the name of “travelling matte” this technique was introduced by RKO Radio Studios, and it went on to be used in famous productions, such as the 1940 film “The Thief of Baghdad”. The rest is indeed, history.

The green screen method has come on leaps and bounds since its inception, and it is now widely used all over the world. Major television companies and production companies have used green screen studios, in London and abroad to shoot scenes, that you would not believe were shot using green screen. London has some of the best green screen studios with some of the biggest companies such as the BBC, using them to film their projects.

Green screen can also be used in photographic projects, whereby the photographer wishes to use a wide range of backgrounds and create different looks without having to fly all over the world, or travel to different locations, carrying heavy equipment. The photographer can also forget about worrying about the weather, as no matter what the weather, you can still achieve your desired photographic finish.

Most green screen studios, whether they are in London or anywhere else in the UK, have the most up to date modern facilities, that are needed to produce the best quality film or set of photographs. You can pretty much choose any background you want, with green screen, and if done properly, no one will ever know that you have used this technique unless you tell them. This method has come a long way ,however  gone are the days when you could just tell by glancing at the screen that a green screen method had been used. However in modern times you really would be none the wiser.

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