Also a midget was involved. However, since Robo Jaws was roughly 25 feet long, and most great whites clock in at around 16 feet, the crew needed a way of making an actual shark look bigger. To accomplish this they built a smaller, virtually identical shark cage into which they planned to put a midget stuntman in full scuba diving gear. Even though that would have made the movie like 30 times better in our opinion.
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