Learning from the great Elia Kazan, I always try to have a word that is the core of what the movie is really about.
In one word.
For Godfather, the key word is “succession.” That’s what the movie is about.
Apocalypse Now: “morality.”
The Conversation: “privacy.”
Megalopolis. You know what it is? “Sincerity.” That’s the word I use when I say, “What should I do?”
For each book I write, I choose a secret sentence.