The plan is that there would be three seasons [in Taboo], and, as with Peaky Blinders, I have had a destination in mind from the beginning, because I think it helps as a writer. The destination in mind is that James Keziah Delaney sets foot on Nootka Sound. But that's a long way off.

I'm very, very excited because I'm just completing Episode 6 of Series 4 [of Peaky Blinders], which again I think is the best yet. And I'm loving it and it's not like work, it's not like a labor, I love doing it, and the boys are coming back and they're loving the scripts.

[2015] it's a time that there's a clash of ideologies, similar to the Cold War. I think that a story like this has been waiting to be told, and I think it's a fresh look at the whole earth-shattering business of the collapse of the Soviet Union.

True stories are always good because they're so odd, and so unlikely.

I've been writing so much. And what happens with TV is that they split [Taboo] into two blocks, so you get a director that does four and another director that does another four. You commit yourself to seven days a week, for 12 or 13 hour days for a long time. I couldn't really do that.

I've spent three hours with Snoop Dogg, talking about how he loved [Peaky Blinders series]. And David Bowie loved it. The late Leonard Cohen was a fan. It struck a chord with various people that I didn't think it would.

It has to be an actress like Marion Cotillard [in Allied] because there are so many levels to it. It's set in the Second World War, when lots of people were doing things that, outside of a war, you wouldn't do, like killing and dropping bombs. She's doing things that one wouldn't approve of, but it's war.