Cillian Murphy is readjusting to life in Ireland after relocating his family from London to Dublin this year.
The actor (40) and his wife Yvonne, have moved home with their two children Malachy (11) and Aran (9), after the couple spent more than 14 years living in London.
Speaking to The Observer magazine, Murphy said he promised his children a dog when he broke the news that they would be moving to Dublin, and said the return to Ireland feels "natural".
"Initially, I was the reluctant one when it came to moving back, but I was quickly convinced. Irish people are brilliant and you have to go away and come back to realise it," he said.
"To move away in your twenties to England or America to establish yourself and find your calling, and then come home... I always thought that it was retrogressive, but now I realise that it is just natural," he said.
"We promised [the kids] a dog, so that was fine. I am the only one that walks it, of course."
Murphy and his wife, Irish artist Yvonne McGuinness, purchased a €1.7m home in Monkstown in 2015.
The Peaky Blinders star, who was reared in Ballintemple in Cork, said turning 40 made him think about returning home more than he ever had before. The prospect of being close to his parents had a lot to do with the family's decision.
"You want to be with your parents as they get older and you want your children to be aware of their culture," he said.
Meanwhile, the actor is currently promoting his new film Free Fire, in which he plays an Irishman who gets caught up in an arms deal in 1970s Massachusetts.
"I was very taken with the idea of making a film that is one long gunfight," he said.