The Ballymena-born star plays dwarf Bofur in Peter Jackson’s trilogy of JRR Tolkien’s tale, the precursor to the Lord of the Rings story.
“It is a big film - it is the really the biggest film ever made - so the scale of it was extraordinary, and very exciting and at times a little bit daunting,” said Nesbitt.
“It was also at times a bit frustrating when you feel that you’re a very, very small cog in a very, very big machine.
“But ultimately working with Jackson was a treat and I’ll always be able to say I was a dwarf in The Hobbit and there’s only 13 of us will ever be able to say that.”
>Click play button to listen to our James Nesbitt interview<
He described his children as “heartbroken at first,” when he and wife Sonia explained they were moving temporarily to New Zealand.
But, he added: “It turned out great. The kids were introduced and integrated into different cultures and my kids will always have a touch of Máori in them.”
The Hobitt: an Unexpected Journey opens at cinemas in Northern Ireland in mid December. Parts 2 and 3 - The Desolation of Smaug and There and Back Again - follow in 2013 and 2014.
Nesbitt was speaking during a visit to Coleraine last week.
In the audio interview (above), he also speaks about his role as Chancellor of the University of Ulster and his work with the charity Wave, which supports people traumatised by the Northern Ireland Troubles.
COMMENT RULES: Comments that are judged to be defamatory, abusive or in bad taste are not acceptable and contributors who consistently fall below certain criteria will be permanently blacklisted. The moderator will not enter into debate with individual contributors and the moderator’s decision is final. It is Belfast Telegraph policy to close comments on court cases, tribunals and active legal investigations. We may also close comments on articles which are being targeted for abuse. Problems with commenting? email@example.com
Spending time with family will help relieve stress. It's comforting to be surrounded by those who understand your quirks. In your public life, you feel like you always have to explain yourself to colleagues. This becomes incredibly draining. To add insult to injury, you've had difficulty finding an appropriate job for your level of expertise. Instead of holding out for the perfect opportunity, you should take a low level job that yields regular pay.More