She also played the foster-mom in “T2” and one of the murdered cops (the one in the exploding pool) in “Lethal Weapon 2”.
Also in “Titanic” she had a minor role as the (very) Irish mom, in steerage, who along with her two young kids failed to get off in time. We last saw that character reading a bedtime story to her kids as the boat foundered, hoping that they would die without anguish. Very sad moment.