Supergirl is a 1984 superhero film directed by Jeannot Szwarc and written by David Odell, based on the DC Comics character. It is a spin-off from the Superman film series and is set after the events of Superman III (1983). 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. It is the fourth film in the Superman film series, set after the events of Superman III (1983) and serving as a spin-off of the series.