I do listen to myself sometimes and think, 'Is my moral compass so easily swayed by the characters I play, or is it me growing as a human being?'

I mean, in many ways, you know, I felt very connected to Ian (Dury) on, on a lot of levels. I mean, politically, & sort of, socially, our, kind of, social backgrounds are quite similar in many ways, as well as our kind of artistic endeavors. So there were many, many things that sort of chimed in for me, and kind of made me feel very instinctive about playing him, and, and although, there was sort of a certain amount of impression involved, actually, there's a lot of myself in the role.

Not a day goes by where I'm not reminded of Gollum by some person in the street who asks me to do his voice or wants to talk to me about him. But because 'The Hobbit' has been talked about as a project for many years, I knew that at some point I'd have to reengage with him.

That's what I think is the biggest challenge, is just being still and learning how to just be present in that stillness and not over do it, not over act.

Where as you go into playing something like Ulysses [on Black Panther], you go - I'm going to have this haircut and this cloth, you draw from different stimulus.

Originally when I went off to work on 'The Lord of The Rings' I got a call from my agent saying that I was just going to do a voice. But I couldn't really approach it like that. To get Gollum's voice I had to play the character.

As long as you have the acting chops and the desire to get inside a character, you can play anything.