A scene from “Unfinished Business”

Carol Thatcher: Why is Mark so obviously your favorite?

Margaret Thatcher: What?

Carol Thatcher: You have twin children, and you clearly prefer one over the other.

Margaret Thatcher: Carol, that's not true.

Carol Thatcher: It is indisputably and painfully true. And what I want to say to you is, is that just because you had a difficult relationship with your mother ...

Margaret Thatcher: Darling, I really don't have time for this.

Carol Thatcher: You cannot let it affect your relationship with all women. Most of all, your own daughter.

Margaret Thatcher: Darling, you do pick your moments. I am busy. In a few minutes, I have the chiefs of staff coming.

Carol Thatcher: Then give me one of those minutes. You disregard me. You overlook me. And you favor Mark.

Margaret Thatcher: Because he's stronger. Like my father was stronger. Yes. You are right. I did struggle with my mother, but it had nothing to do with her sex. It had to do with her weakness. I could not bear how she was prepared to just be a housewife.

Carol Thatcher: Because her husband treated her as such.

Margaret Thatcher: That is not true! Your grandfather, my father, was wonderful with women. Wonderful. He encouraged me. He taught me. He made me who I am. He was determined my ambition be limitless. And he tried with your grandmother. But there is a limit to what one can do if people are themselves limited.