I don't think Vladimir Putin goes to the theater enough to even deign to think there was any criticism intended. We were invited by Moscow. Maybe they wanted a particular production of Julius Caesar in order to remind Putin that he was vulnerable, but that wasn't our intention.

Sometimes the parallels that are brought in can make the play seem less relevant; you can deny a play's application to the universal by making it too specific. Sometimes having a modern context does make things easier to grasp; sometimes, you go, "Why have they got swords?" "Why didn't Juliet just text Romeo? Why did she bother posting a letter? Why was the Milan post service so bad?" It throws up irrelevant questions that don't help.

The list of potential candidates for Julius Caesar is quite large. You could go, "Well, he's a Caesar." Idi Amin, or Bokassa in the Central African Empire, or in Zimbabwe, Robert Mugabe coming to power. They have all, at some point in their lives, been candidates for a casting as Julius Caesar.

I was doing an interview with Charlie Rose and he said, "What do you think about Margaret Thatcher?" - and I had not heard she had died at this point - and he said, "Is there any kind of Shakespearian overtone here?" I said, "Well, actually, Julius Caesar, because ever if a politician was stabbed in the back, it was Mrs. Thatcher, by all her conspiratorial cabinet, which really did just stab her in the back." It's a rather interesting resonance.

By the time I came of age and, indeed, Margaret Thatcher became prime minister, I had seen the entire William Shakespeare canon, which, in those days, you were quite able to do. Now, it's a much harder thing. Mrs. Thatcher was really axing public subsidy for the arts.

What's depressing, in a way, thinking of Margaret Thatcher legacy - and she was no doubt great in many ways - but the arts in the UK are still having to justify that it is a profitable business rather than a frivolity. It's one of the greatest UK exports, one of the reasons people come to the UK, and yet we're still having to justify our existence in terms of funding.

Sometimes it can get overburdened with nuance - the actors find all sorts of different spins on the lines that can lose simplicity and directness. They all become fond of their extra stresses and the audience are going, "Just give me the line simply, what did you mean?" You have to ward against that.