A scene from “Unfinished Business”

Queen Elizabeth II: You and Diana talk, don't you?

Princess Margaret: What makes you think that?

Queen Elizabeth II: You always say how much sympathy you have for her.

Princess Margaret: I feel for her. As an outsider. As someone who is emotionally complex. As someone who struggles to lead a straightforward life. As someone with flair and character. And star quality.

Queen Elizabeth II: Yes.

Princess Margaret: The system isn't easy for people like us, you know. But that doesn't mean we talk. Or share confidences. Diana comes and goes, and I have no idea what she's up to.