A scene from “Unfinished Business”

Queen Elizabeth II: Margot, is it possible that you're still drunk?

Princess Margaret: Do you know, I think I might be, slightly.

Queen Elizabeth II: You need to be more careful.

Princess Margaret: Yes, quite right. Grain and grape don't mix.

Queen Elizabeth II: No. I meant about where you're seen. And with whom. You're drinking far more than you used to.

Princess Margaret: Why do you think that is? Because I'm unhappier than I used to be. And why is that? Because I am still unmarried. And why is that? Oh, because you denied me my perfect match.

Queen Elizabeth II: That's not fair. As your sister, I would have been perfectly happy for you to marry Peter.

Princess Margaret: What?

Queen Elizabeth II: It was the Crown that forbade it. Not to mention the fact that he was a little old. Not really from the right...

Princess Margaret: No, no, no, no. Don't you dare say "background."

Queen Elizabeth II: Well, I just think it might have all come back to haunt you.

Princess Margaret: What, did Philip's Nazi sisters come back to haunt him? Or his lunatic mother? Or his womanizing, bankrupt father?