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Chroma Key (view source)

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* [[Tim Burton]]'s ''[[Alice in Wonderland (film)|Alice in Wonderland]]'' used this extensively. The sets seem to consist of nothing but green walls in the proper shape, along with platforms. Only things the human characters touched actually existed on the set, and most seemed to be green and were textured via CG (The Tea Table seemed to be an exception, due to the hatter walking on and knocking stuff off). The staff comments in the "Making Of" stated it was an "Odd Mix" of Full CGI (too many to list), motion capture characters with the actor's head pasted on, normal actors human (mainly Alice), and edited normal actors (the Red Queen and her giant head).
* The body-suit version was memorably used in ''[[Star Trek: First Contact]]'' to erase half of the actress playing the Borg Queen during her entrance-in-two-parts.
* At the Walt Disney Studios, [[Ub Iwerks]] developed the sodium vapor process, in which the actors were filmed against a white backdrop lit with powerful sodium lights. A special prism in the camera separated the image and exposed it simultaneously on two different film stocks: regular color film, which did not pick up the sodium light, and black and white film sensitive to that particular wavelength of sodium light and nothing else, which created the matte. The process was used for most Disney productions, including ''[[SongThe of theParent SouthTrap]]'', ''[[Maryand Poppins]]''most andinfamously ''[[TheMary Black HolePoppins]]'', and was also used for ''[[The Birds]]'' and a number of [[Ray Harryhausen]] movies. Although it provided better results than blue screen, and saved time by creating the matte simultaneously with the foreground footage, the process proved too expensive and was discontinued by the 1980s. It has since been deemed [[Lost Technology]] until the people over at [[Corridor Digital]] managed to [https://www.youtube.com/watch?v=UQuIVsNzqDk reproduce] the effect using off-the-shelf equipment. However, given the advances in visual effects technology and the extreme rarity of the prism, Corridor concluded that the traditional blue/green screen methods are here to stay as modern post-processing and video editing software have more than made up for the chroma key's shortcomings.
* Used a bit in ''[[Who Framed Roger Rabbit?]]'', as you can see [http://www.youtube.com/watch?v=u_VnHAy1Vdc here].
* In the ''[[Harry Potter (film)|Harry Potter]]'' films, the invisibility cloak is, of course, created with a chroma key green cloak. Chroma key is obviously also used for scenes with [[Flying Broomstick]]s and so forth. As as far as sets go, the ''Potter'' filmmakers tend to prefer building real sets and usually just use chroma key to fill in scenery out a window, for example. However, there have been at least two all-CGI sets in the series, the [http://www.youtube.com/watch?v=dVxh9AYZZs8 Hall of Prophecy] from ''[[Harry Potter and the Order of the Phoenix (film)|Harry Potter and the Order of the Phoenix]]'' (because they couldn't do the scene where all the shelves crash down for real) and the Chamber of Secrets in ''[[Harry Potter and the Deathly Hallows - Part 2]]'' (the original Chamber set from ''[[Harry Potter and the Chamber of Secrets (film)|Harry Potter and the Chamber of Secrets]]'' was real, but wasn't saved after filming).
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