Her most famous role in film was as the society matron Ruth DeWitt Bukater, the mother of the character played by Kate Winslet, in the 1997 blockbuster Titanic.
Hendes mest berømte rolle på film var som samfundsøkonomen Ruth DeWitt Bukater, der var mor til figuren spillet af Kate Winslet i storfilmen Titanic fra 1997.