JAMES McAvoy has admitted he had to take a break from movies to spend time with his family and friends.
The 31-year-old Scots star and his actress wife Anne-Marie Duff have, until now, been so private about their baby son Andrew, they haven't even revealed his date of birth.
But opening up for the first time about being a dad, James admitted he'll be cutting back on his workload to make sure he's always there for his wife and child.
James - who's promoting superhero prequel X-Men: First Class - confessed he's not sure yet how fatherhood has affected him.
He said: "I don't know really. We'll have to wait and see as it goes on - I think you can only answer that in 18 years.
"I'm trying not to analyse things too much, I'm just trying to kind of stay open."
It's probably the most James has ever spoken about his son. Not much sleep then?
"Exactly," he grinned, "not much time to sleep. But it's nice to come back and start publicising things again, it has to be said."
James has been on the go in Hollywood since 2005, when The Chronicles Of Narnia: The Lion, The Witch And The Wardrobe kicked off a run of success.The parts kept coming with big roles in The Last King Of Scotland, Becoming Jane, Atonement, Starter For 10 and Wanted.
He has four films out this year - starting with the computer-animated Gnomeo & Juliet last month, then First Class, The Conspirator and another animation, Arthur Christmas.
So he's keen to slow the pace, especially with all the publicity work that comes with a new movie. He said: "I think you get a little bit sick of it but there was a couple of years there where I was doing a hell of a lot and, to be honest with you, I wasn't getting much time for my own private life.
"I wasn't getting a lot of time to kind of balance the two.
"So I thought I had to kind of pay attention to that, to my family and to my friends and all of that.
"I'm lucky in that way that I get the chance to do what I would like to do, but I also get the chance to kind of step back and maybe do one or two things a year and I don't have to do five or six any more."
James first came to attention in BBC1's State Of Play in 2003, followed by a star turn in Shameless the next year. He met Anne-Marie on set. They married in 2006.
Since then, he's gone on to fight it out with Ewan McGregor for Sean Connery's mantle as the greatest Scottish actor.
So far, his roles have steered clear of McGregor's edgy turns in Trainspotting and The Pillow Book. But James has something surprising on the boil. He said: "I'm looking at a part soon, like the second half of this year, that is quite extreme I mean, quite full on mental.
"But yeah, I'm totally up for that, if it's the right part though. I think it just has to be the right time. We'll wait and see."
Given that he was born in Port Glasgow and brought up in Drumchapel, James certainly doesn't think he's played it too safe.
He said: "I've played a lot of very posh, sort of noble or aristocratic English people, which is nothing like what I am, so I feel that there is quite a lot distance there and have played a little bit far away from myself."
In the First Class, he's stepping into the shoes of member of the acting aristocracy.
He plays Professor Charles Francis Xavier in the prequel - a role taken by Patrick Stewart in the original trilogy.
The movie sees Professor X and best friend Erik Leshner, played by Hunger star Michael Fassbender, set up a school for people with superhuman abilities. But Leshner becomes Xavier's nemesis, Magneto.
It's James's second foray into comic book movies after starring with Angelina Jolie in Wanted, which has a sequel on the cards. So why did he go for X-Men? "Fun and money," he laughed. "Those are two very valid reasons I'd say. Also, I was a fan of the cartoon when I was a kid, and a fan of the original X-Men movies.
"The first and second were fantastic, so it was a really good opportunity and, I'm also a fan of Patrick Stewart from Star Trek and everything else, so to get to play the young version of him in X-Men was quite exciting as well, I have to say.
"But also, to have the opportunity to redefine it, and change everything and change the character and make him a very different person was great.
"He's at a much younger stage in his life, so he's clearly going to be a very different man."
The summer is going to be pretty much jam-packed with James, with First Class out in June and The Conspirator hitting cinemas in July. The second film sees him cast as a lawyer defending Robin Wright as the only woman charged in the Abraham Lincoln assassination.
James said: "I'm paying the mortgage, and I'm really lucky to work a lot, but I think that it should always be like that.
"I think it should always be for the kick of it, and for the fun, if you have the good fortune to work a lot.
"If you don't have the good fortune to work a lot then you take any job you get offered, whether it's a good job, fun job, a bad job, horrible job, whatever, you just take what you need to take.
"But I'm lucky in that - at the moment anyway and hopefully forever, but who knows - I get the chance to pick jobs for the kick of it and the fun."