Gilligan's Island's Final Reunion TV Movie Was A Sci-Fi Story With The Harlem Globetrotters

The final TV movie in the Gilligan's Island franchise was a full-fledged sci-fi story, featuring basketball teams, super-powered minerals, and athletic androids. This third and final live-action reunion film followed the cancellation of the popular TV series. Most of the original cast returned for the 1981 made-for-TV movie, with Constance Forslund filling in as Ginger Grant, while Tina Louise, the sole surviving cast member, declined to participate.

Jim Backus made a cameo as Thurston Howell III, with David Ruprecht playing his son, Thurston Howell IV.

The story picks up where 1979's The Castaways on Gilligan's Island left off, with Gilligan and his friends running their island resort. A plane carrying the Harlem Globetrotters, a renowned all-Black exhibition basketball team, crashes nearby. Meanwhile, a corporate industrialist named J.J. Pierson discovers the resort sits atop a massive deposit of a powerful mineral called supremium.

He devises a plan to seize control of the land, challenging the resort to a basketball game. However, Pierson has a hidden weapon: a team of basketball-playing robots called New Invincibles.

The origin of this peculiar crossover remains unclear. NBC Entertainment president Brandon Tartikoff or network chief Fred Silverman may have conceived the idea, while Sherwood Schwartz, the creator of Gilligan's Island, reportedly pushed for a movie featuring the Harlem Globetrotters, who had previously appeared as guest stars on The New Scooby-Doo Movies.

Producer Lloyd Schwartz, Sherwood's son, believes Fred Silverman was the originator, as he was high on both the Dallas Cowboy Cheerleaders and The Harlem Globetrotters, aiming to have them guest-star in various shows. Despite its ratings, the movie performed well in syndication and marked the end of the live-action franchise.