This movie is made as a sequel to the Superman movies and to take advantage of the Superman buzz. Supergirl/Linda Lee (Helen Slater) comes to earth looking for a device she lost. It is an orb that keeps the refugee ship powered as the group has left Krypton. Without the orb they are doomed. Zaltar (Peter O' Toole) leads the group and condemns himself for the loss of the orb.
Supergirl follows the orb, and as luck would have it, it falls into the hands of a witch, Selena (Faye Dunaway), who wants to use the power to take over the world. She has a couple helpers (Brenda Vaccaro and Peter Cook) Only Supergirl stands in her way. Supergirl is cousin to Superman, and she goes to boarding school where she rooms with Lucy Lane (Maureen Teefy), Lois' young sister. There is a handsome man (Hart Bochner) in the mix that Selena is determined to have, but her spell goes wrong and he attaches to Linda Lee, Supergirl's alter ego.
This movie is mildly entertaining, but goes over the top and as a result did not get good reviews. The other actor involved, from the Superman series is Marc McClure who plays Jimmy Olsen. He is a friend of Lucy's.
