Trivia for
Westworld (1973) More at IMDbPro »

• When the Gunslinger robot is splashed in the face with acid, Yul Brynner's face was coated with an oil-based makeup mixed with ground Alka-Seltzer. A splash of water then produced the fizzing effect.
  
  
• The first use of computer digitized images as part of a feature film (not merely monitor graphics) was the Gunslinger's point of view in Westworld. After the process was finally developed enough to produce satisfactory results, it took a mere eight hours to produce each ten seconds of Gunslinger's pixellated POV.
  
  
• The robot that Yul Brynner portrays is an homage/spoof of his character Chris from The Magnificent Seven (1960) and wears the same costume.
  
  
• Michael Crichton became inspired to write this film after a trip to Disneyland, where he saw the Pirates of the Caribbean ride, and was impressed by the animatronic characters.
  
  
• Director John Carpenter based the "indestructable" nature of his killer Michael Meyers in Halloween (1978) on Yul Brynner's character in this film.
  
  
• Yul Brynner's character is known as The Gunslinger. Interestingly, the word "gunslinger" was only created in the 1950s and has no connection to the old West.
  
  

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