Of Cathy's 17 films (all in starring or featured roles), 7 are
film-noir or quasi-film-noir, making her a major contributor to the
genre.
In 1947, she accepted the Oscar for Best Actor in a Leading Role on behalf of Fredric March, who was not present at the awards ceremony.
Samuel Goldwyn, who was feuding with director William Wyler after Wyler left the fold, insisted that Cathy divorce her husband Robert Wyler, William's brother. When she refused, she was let go by Goldwyn.