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.

[Sherlock Holmes] has to understand the world. That's very much John's [Watson] influence on him. But like a lot of the friendships and relationships in that world, it's born out of necessity. It makes him better. There's a pragmatism to it. It's not whimsical or sentimental. It's born out of necessity.

[Season 4 of Sherlock Holmes will be] myopically dark. You're talking about the end of the universe darkness. You can't see in front of you and would walk into everything dark.

What makes a good animated movie is being able to balance adult and knowing in-jokes and also just out and out funny things that make all people laugh. The idea that it's actually something that will appeal to a family, that's the trick.

There's still nearly the same amount of slavery, if not more, in the world today, as there was at the height of the slave trade.

I really discovered [Dr.Strange] through hearing about this film and first meeting Scott [Derrickson] and getting into it and just opening up and saying, "Okay, this is, like all comics, very much of its era," and my first question was, 'How do you make this film? Why do you make this film now?' and the answers were so enticing that I was like, "I'm in."

Pull the hair on my head the wrong way, and I would be on my knees begging for mercy. I have very sensitive follicles.