My sons have to learn that you take the rough with the smooth and they've seen a lot of smooth in the years that they've been around. They didn't see the early years. But both my mum and myself are actors and we constantly tell them it's not easy. But they understand that.

On lower budget things you're still working collaboratively, but the investment and your level of creative importance is higher on something like this.

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.

I've done a fair amount of that stuff... when we did 'Lord of the Rings' the transformation sequence from Smeagol to Gollum was a 19-hour make-up job. You have to have a kind of zen button that you press and allow the mind to be focused in a certain way.

Acting is acting, as far as I'm concerned and, you know, how you manifest it is, at the end of the day, not the point. It's how it affects the story & how it affects the audience. And if people are hungry to be told stories, using, using this form then there's a reason for that.

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.

It's a different rhythm than most movies. For a lot of the actors, you're 12,000 miles away from home. It becomes a way of life - getting up at five in the morning, shooting every day, day in day out, for 270 days. The new cast playing the dwarves were carrying incredibly heavy weights in their suits, they sat through hours of make-up every day. So it's quite challenging from a stamina point of view.