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.

To get a horse to hit a mark without a rider, to get it to stand up, to get it to rear, to get it to pick up a bucket and bring it over is amazing. It's hard work and very rewarding but can be dangerous.

Thus, a vision of the whole gradually grew for me that was nourished by the various experiences and realizations I had encountered along my theological path. I rejoiced to be able to say something of my own, something new and yet completely within the faith of the Church. The feeling of aquiring a theological vision that was ever more clearly my own was the most wonderful experience of those years.

[Role of Dr.Strange] gives me an excuse as an actor to be learning with my character, which is something you can do authentically - I'm not a martial arts expert, I'm certainly no sorcerer, so all these things, the movement of the body, the physicality, the changes he goes through mentally and physically, obviously we're not shooting in sequence, but it's a great part.

[Doctor Strange] is difficult, he's arrogant, but he's kind of brilliant and charming and you'd think, "Yeah, I'd want him on my head if I needed brain surgery." He's good enough to warrant his arrogance and he respects other people but not when he thinks he's right and he'll just do what he deems needs to be done when he knows or feels that he's right and the problem from humility's point of view is that he is right, he's really really good at his job.

That's something I have to work on: to separate what really matters, to conserve energy by not worrying about what other people think. When I walk through that door, it's about home. If I didn't do that, I'd become consumed by one thing only and damage the people who love me. And it would damage the work.

I had to imagine myself into certain aspects of [Julian Assange] character for our version of events. That involved extrapolating based on clues in his biography, his public persona, photographs, and other accounts of him by people who encountered him during that extraordinary period from 2007 to 2010 that we charted in the film [The Fifth Estate]. So, it involved a lot of research but, sadly, no contact with the man himself.