Liam Neeson out and about during the 2009 Sundance Film Festival, Day 5, Park City, Utah - 19.01.09

The actor is currently promoting the new drama, about Northern Ireland's troubled past, at the movie event in Park City, Utah, this month (Jan09).

And he insists he was dreading watching the finished product for the first time at a screening.

Asked if he would enjoy watching the film, Neeson responded: "I wouldn't use the word 'fun'. It's strange - it's kind of giving birth. I hadn't seen the complete film and to see it with 200 other people is a wee bit nerve-wracking.

"You work on something for quite a long period and then you see it and there's stuff you can't change.

"And you're seeing it with a roomful of strangers too. It's a kind of a very odd, unique feeling."

Source: WENN