Supergirl is a 1984 superhero film directed by Jeannot Szwarc from a screenplay by David Odell based on the DC Comics character of the same name. It is the fourth installment in the "Superman" film series, set after the events of "Superman III" (1983) and serving as a spin-off of the series. The film stars Helen Slater as Supergirl, along with Faye Dunaway, Hart Bochner, Peter Cook, Mia Farrow, Brenda Vaccaro, and Peter O'Toole, with Marc McClure reprising his role as Jimmy Olsen from the "Superman" films.