Solarbabies (1986)

Synopsis
A futuristic dystopia is the setting for this tale about good versus evil and a magical space-sphere out to reestablish a civilized society. An orphanage in a bleak and deserted landscape imprisons a large group of youngsters who have divided into good and bad groups. One day, while competing at roller-skate ball, the teams come across a bowling-ball-sized sphere named Bodhi (a Sanskrit word equivalent to "enlightened compassion"). Bodhi communicates with the good kids, but the bad ones cannot understand the sphere's electronic burbles. The nasty Darstar (Adrian Pasdar) steals Bodhi and heads out into the forbidden world beyond the orphanage. ~ Eleanor Mannikka, All Movie Guide