'I think of Natasha all the time, you don't get over something like that' - Liam Neeson
Liam Neeson has revealed that it was the death of his late wife Natasha that spurred him to take on so many roles in recent years.
The dad-of-two said that his children and his work kept him going when he lost his wife Natasha Richardson in a skiing accident in Canada in March 2009.
The pair wed in 1994 after meeting on the set of a Broadway play.
"I still think about Natasha all the time," he confessed.
"You don't get over something like that. My kids have also been the best support for me. Hopefully I'm the same for them, too.
"Work gives your life structure when you lose your way. That explains why I've deliberately worked a lot in recent times."
The 62-year-old actor also said that he was keen to continue working as he has always "had the feeling my run of good luck won't last for ever."
In an interview with parenting website DADinfo, the Schindler's List star also opened up about his hopes for his sons, Micheal (19) and Daniel (18).
While he would like to see them settle down and marry eventually, he said he wants them to enjoy their freedom and see the world.
"I want them to have fun, have relationships and settle down if they want."
He hopes that his sons, who have both started college, won't wed for at least another two decades though.
"Women get their act together emotionally by their late 20s. They know who they are.
"Guys haven't got a f*****g clue until they're at least 35. Actually I'd say 40. So don't even think about marriage and kids until you're at least 37, 38."
"It's different for guys," he pointed out.
It said watching his kids leave home was bittersweet, but he added that he wanted to see them spread their wings.
Neeson latest film continues the protective parenting theme that underpinned his famous "I'll find you speech".
Run All Night sees the actor starring as an ageing Irish mob enforcer who must save his son from mob bosses.
Recently the action-star admitted that he could only forsee another two or three years in high-octane Hollywood roles.
Neeson, who has always been proud to showcase his roots, is set to narrate a 1916 documentary which will be released across the globe to mark the centenary of the Easter Rising.