Cumberbatch - it sounds like a fart in a bath, doesn't it? What a fluffy old name. I can never say it on a Monday morning. When I became an actor, Mum wasn't keen on me keeping it.

Sometimes during a conversation with a journalist - where you are answering things you never normally talk about, not even with some of your closest friends - you end up being quite confessional, and you don't think about the amplification of that. No matter how fancy these journalists are, they have editors or political leanings behind their publications, which means that, basically, they're going to shape what you've said into an article they've already written. So you have to be really careful with your words.

I think I've had very knee-jerk emotional reactions to things, and sometimes I've said things without thinking. Being overly emotional clouded my judgment.

[Doctor Strange] is still quite cocky by the end of the film. No, I'd say the major curve for him is that he learns that it's not all about him, that there's a greater good. But what he thinks he was doing as a neurosurgeon, that was good because it benefitted people's health was really just a furtherment of his attempts to control death and control his own fate and other people's, but that's still driven by the ego.

The world of 'Sherlock Holmes' and the world that we live in now is big enough to take more than one interpretation.

You can perfect genius because genius is not perfection. On his level and his practice and his methodology, it's almost inhuman. So, that's been a fantastic arc to play, and boy does it go somewhere in this series.

It's the same thing, I think, whether it's breathing or meditation or yoga. And running is a great way of doing it.