Joan Crawford had been considered for Ma Kent in the 1978 Superman film.
She was too ill to accept & died as the film was shooting.
Crawford could NEVER have played Liz Stoddard.
Her 1968 Secret Storm appearence was a fiasco because she was not a quick study & didn't know her lines.
She didn't make an occasional cute blooper~~she didn't know any lines at all & couldn't figure out how to cover herself!
David