It was confirmed earlier this year that director Peter Jackson, and his co-writers Fran Walsh and Philippa Boyens, had decided to make a trilogy of Hobbit films, using material from The Lord of the Rings' appendices to expand the story.
"It's not really daunting," Freeman told Total Film. "It is unexpected compared to where we were, but it's the same thing of telling the story and doing your bit, whether it's one or two or three films. There's just, you know, more of it!
"But there are so many of us involved, it doesn't really hang on anyone's shoulders."
Boyens recently spoke about the decision, explaining that much of The Hobbit's story is not fully told in the book itself.
"Professor Tolkien went back and revisited his own storytelling," she said. "He expanded on a lot of things there and we chose to draw upon those, to reshape some of The Hobbit - but only so we could encompass and explain things."
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The Hobbit: An Unexpected Journey will be released on December 13 in the UK, and December 14 in the US.
Gallery – The Hobbit: An Unexpected Journey