Cocoon (1985)

A group of elderly residents at a Florida retirement home discovers a rejuvenating pool imbued with energy from extraterrestrial cocoons stored underwater by aliens. As the seniors regain vitality and joy, they grapple with the choice between staying young forever by leaving Earth with the aliens or embracing the natural course of their lives. The story highlights themes of mortality, hope, and the rediscovery of life's wonders through this fantastical premise.