Cocoon (1985) Beyond the innocence of youth, and the wisdom of age, lies the wonder of... Cocoon. Ron Howard’s sci fi “dramedy” stars Don Ameche, Wilford Brimley, Hume Cronyn, Brian Dennehy, Jack Gilford, Steve Guttenberg, Maureen Stapleton, Jessica Tandy, Gwen Verdon, Herta Ware, Tahnee Welch, and Linda Harrison, and follows a group of elderly people rejuvenated by aliens. Rated PG-13: 1 hour 57 minutes.