A scene from “Unfinished Business”

Princess Anne: What's all this I hear about a book?

Prince Charles: The idea is to do a book following on from the interview. Taking some of the points further.

Princess Anne: Why?

Prince Charles: Because a lot of the really important things I wanted to say about education and environment and architecture got drowned out by all the hoo-hah about adultery. Also, people are interested.

Princess Anne: Maybe not as interested as you think.

Prince Charles: Maybe more interested than you think. If my postbag is anything to go by. In the 18th century, it was considered perfectly normal for the Prince of Wales to set up shop at Leicester House to generate fresh ideas. A shadow monarchy, in essence. A rival court.

Princess Anne: But this is not the 18th century. And creating rival courts is not what we do in this family. We close ranks behind the sovereign, not criticize her.

Prince Charles: We're all after the same thing, Anne.