Russell Crowe believes he has changed since becoming a father.
The 'Water Diviner' star has eight-year-old Tennyson and 11-year-old Charles with estranged wife Danielle Spencer and has admitted he now sees everything through the "prism of being a parent", something which gave him a "deep connection" to the character he played in the film.
He said: "You know, once you're a parent, everything that you do in life happens from the prism of being a parent.
"So obviously there was a deep connection for me when I read that particular story."
The 51-year-old actor also admitted he found some of the scenes - in which his character's three sons were fatally wounded in the Battle of Gallipoli - particularly "difficult" to film.
He added to E! News: "Shooting those scenes was very difficult to take emotionally."
Meanwhile, Russell previously admitted he has become more empathetic and compassionate following the arrival of his two sons.
He said: "I was in the middle of life, doing other projects, developing things, and suddenly this script (for 'The Water Diviner') arrived and everything changed.
"As a father of two sons, there was an empathy and compassion, straight away. So in a sense I felt I didn't choose the movie. It chose me."