COCOON opens. Directd by Ron Howard, from a screenplay written by Tom Benedek. Captivating, life-affirming, very Spielbergian sci-fi fable centering on elderly group of Florida retirees who discover alien cocoons bearing "fountain of youth" properties. Don Ameche, Wilford Brimley, Hume Cronyn, Don Ameche, Steve Guttenberg and Brian Dennehy lead veteran cast.