shirley maclaine.hildho childhood, "lucky me: my life with and without my mom shirley maclaine." >> shirley maclaine is bigger than life. she is a force to be reckoned with. and she's big in everything she does. she's big in eating an ice cream sundae. >> from war and peace, down to -- >> reporter: now starring in the global sensation "downton abbey," maclean, at one time, was a triple threat. who sang, danced and acted and went on to win an oscar. >> i deserve this. thank you. >> reporter: -- for her portrayal as a mother who has a love/hate relationship with her daughter in "terms of endearment." >> why should i be happy about being a grandmother? >> reporter: but maclean's real life daughter says that despite the glamour, her childhood wasn't a fantasy, but more of a nightmare. your mother was absent -- most of your life. >> yes, she was. she was very absent. i was very lonely. very lonely. and i still struggle with abandonment issues and loneliness. >> reporter: she was always happy to see you for