"Because we had performed in 'The Hobbit' together, we were known as the 'Tolkien white guys'," he said in an appearance on "The Graham Norton show".
The 46-year-old actor also recalled the experience of watching "Black Panther" with a live crowd.
"It's been amazing. It's done amazingly well and we're all very proud of it... It feels like a moment. It's lovely to be part of that," he said.
"(The premieres) were like football matches. They were properly vocal. Pretty much every fifth line was getting a big woof. People were hungry for it. People wanted it, like it was a bit more than a film," he added.
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