Gilligan's Island creator Sherwood Schwartz almost introduced a prehistoric surprise to the beloved sitcom's paradise, but the dinosaur plan was scrapped at the last minute.
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Schwartz was inspired by the popularity of dinosaurs in the 1960s and wanted to add a T-rex to the island as a new castaway, seeing it as a surefire ratings booster.
Producers ultimately nixed the idea, worried that a rampaging dinosaur would be too much of a logistical and budgetary challenge, preferring to stick to the show's quirky but largely grounded premise.