Cocoon

In the movie "Cocoon" released in 1985, a group of senior citizens discover a pool with mysterious rejuvenating powers that are provided by friendly aliens. As they experience a return to youth and vitality, they must come to terms with the consequences and choices that arise. The central conflict revolves around their decision to embrace their newfound energy or return to their natural aging process. The movie explores themes of immortality, friendship, and the human experience.