It’s like a kind of boiling kettle, you know: you don’t want to make your tea until the kettle’s boiled and it’s the same thing, you don’t want to make your movie until you’re boiling with something you need to say. And theater, for instance, has always given me the opportunity to wait for that moment. It’s the same with film actually — film has given me an opportunity to wait until I’m ready to do a play. One fuels the other. Even the decision to write and make 1917 , weirdly, came out of doing the Bond movies.

Having bought the colours, an easel, and a canvas, the next step was to begin. But what a step to take! The palette gleamed with beads of colour; fair and white rose the canvas; the empty brush hung poised, heavy with destiny, irresolute in the air. My hand seemed arrested by a silent veto.

Obviously, it’s different for everyone. And actually there is a difference for each thing I do. But one way it happens is to just move. [ laughs ] I mean, obviously, you don’t just sort of randomly throw yourself around the room. You move with these ideas and sometimes I find that I’ve already got images in my head that I imagine my body in, or sometimes I have sequences in my head. I think a lot of time I’m listening to what comes next because sometimes the body will tell you that. Often I don’t document it too early in the process because sometimes if you forget stuff it’s worth knowing that the things that you forget maybe weren’t worth keeping. The things that have settled are the things that need to be kept because they seem most urgent. I don’t know. I mean, sometimes it’s about going to the studio and nothing happens for a long time and you just sit there and you’re not feeling it. That’s awful. It’s like when you’re writing and sometimes you go to the coffee shop and you’re like, “So, we’ll just see what happens.” And you end up on Facebook. I think the answer to this is… I really think the answer to this is I don’t know. [ laughs ]

When I’m writing a book, I start gathering material for years before I start writing it. I will find newspaper clippings, overheard dialogue, images that come to my head, sort of vague scenes from a plot, and I just make a huge, messy list of those things. I’m doing that for the next book, and I’ve been doing it for a long time, and I’m still not even close to being ready to start. Maybe in the fall I’ll start it, but I’m not on the cusp of starting it really. I’m just gathering that raw material. And what deserves to go in that document? It’s hard to say, but I know that things come together. I know that this article about Chinese surveillance definitely belongs in the same place with my son telling me about this dream he had. These are somehow connected. I have no idea how, but it’s just a feeling that I have, like an instinct. The Need and The Beautiful Bureaucrat very much began that way.