5. Aurora Greenway
Played by: Shirley MacLaineMovie: Terms of Endearment (1983) Moving, hilarious, and revered by critics and audiences alike, Terms of Endearment is arguably the best movie ever made about the mother-daughter relationship. But it's Aurora's role as grandparent that provides her definitive redemption. Putting years of hostility behind her, the widowed Houstonite steps up to care for her only child Emma (Debra Winger), who has been diagnosed with terminal cancer. After Emma's inevitable death, in the ultimate expression of love for her daughter, Aurora becomes guardian to her three children. MacLaine, too, won an Oscar for this role.