Question: Maureen Jane Teefy and Helen Slater both starred in what 1984 film directed by Jeannot Szwarc? 
Sentence (from "Supergirl (film)"): The film stars Helen Slater as Supergirl, along with Faye Dunaway, Mia Farrow and Peter O'Toole, with Marc McClure reprising his role as Jimmy Olsen from the "Superman" films.
Relevant evidence: Yes