No matter how extreme things get, it still has that ring of truth about it that backs the characters - even though they're despicable and what they're doing isn't right you still care for their fate.

My agent told me they were casting for the voice of Gollum. I hadnt read The Lord of the Rings, but I read the script and realized what an amazing role it was. I developed a voice for the audition tape, then met Peter Jackson and Fran Walsh at the auditions and fell in love with them both.

35mm film isn't ticking away so it's subconscious - performances are allowed to breathe in a much more real way I think.

My first job when I got my equity card was acting in 14 plays back-to-back. Playing that many roles, you look for ways of differentiating the characters physically, which goes hand in hand with understanding them psychologically.

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.

But the first time I had to stand up and sing with them was when we did the pre-record for the movie and it was that moment where I sort of said to myself: "S**t, now I actually have to do this and I have to stand up and do my stars in your eyes moment!" Wake Up and Make Love With Me was the first song and I thought: "Here we are with Chaz and all the boys..."

What's wonderful about Tolkien and Shakespeare is that they show up your own individual microscope. They're so infinitely vast. You can reinterpret them in so many ways. Each age will have its own resonance with Lord of the Rings.