re: 1st space movie to use special effects?

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This was regarded as the last big special effect production to be made under the "old studio system." All of the elaborate special effects were created within the Disney studio and not farmed out to outside special effects companies.

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To film the special effects, Disney originally wanted to rent the Dykstraflex camera system that was created for Star Wars (the first computer-controlled camera) from Industrial Light & Magic. However, the price and rental terms were unacceptable so Disney created its own version instead. What resulted was Disney's A.C.E.S. (Automated Camera Effects System), which was radically superior to the Dykstraflex system; the Mattescan system, which enabled the camera to move on a matte painting (that was previously impossible); and a computer-controlled modeling stand.

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At the time of its release, the movie featured the longest computer graphics sequence that had ever appeared in a film: the "green grid" sequence that appears under the opening titles.

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