Also, something mind-blowing from Wikipedia's listing for Zelazny's Lord of Light, describing Kirby's work on the project :

  • FILM VERSION

    In 1979 it was announced that Lord of Light would be made into a 50 million dollar film. It was planned that the sets for the movie would be made permanent and become the core of a science fiction theme park to be built near Denver, Colorado. Famed comic-book artist Jack Kirby was even contracted to produce artwork for set design. However, due to legal problems the project was never completed.

    Parts of the unmade film project, the script and Kirby's set designs, were subsequently acquired by the CIA as cover for an exfiltration team posing as Hollywood location scouts in Tehran in order to rescue six US diplomatic staff who escaped the Iranian hostage crisis by virtue of being outside the Embassy building at the time.
    [ CIA article on the covert operation ]



https://boingboing.net/2012/10/16/how-roger-zelaznys-lord-of-l.html