I was just talking to Benedict [Cumberbatch] who's got a little baby and knows his father lives in his phone. We as humans are evolving really fast, so everyday we're hit with that.

I'm interested in that whole question of where we wear our identity and how can we see it.

I always think of the word 'abandonment' when I think of the character.

What children, in fact all of us at any age, find frightening is unreliability and emotional coldness. The idea that you can't affect someone, that you can't see where they're coming from and can change tact at any moment.

Even beyond sexuality, I'm generally interested in identity.

I think of great masters, like [Alfred] Hitchcock, for example, who works absolutely within this sensational realm. You feel like you can always tell what temperature a room is in a Hitchcock film because the people feel alive, they don't feel like they're just being filmed on a stage.

I'm just really old [in Doctor Strange]. Just really, really old. There is I suppose a sort of theme tune which I'm really interested in.