The 44-year-old actor - who raises six children with partner Angelina Jolie - admits starring as an elderly man who ages backwards in The Curious Case of Benjamin Button inspired him to re-evaluate his priorities in life.
He said: "Angelina and I do not fight anymore. What occurred to me on this film, and also with the passing of Angelina's mother Marcheline Bertrand last year, is that there's going to come a time when I'm not going to get to be with this person anymore.
"I'm not going to get to be with my children anymore. And so, if we have a flare-up, it evaporates now. I don't want to waste time being angry at someone I love."
Brad added he loves raising such a large brood because he deals with something different every day.
He said: "I have this fantasy of my older days, painting or sculpting or making things. But right now, it's about getting the work done and getting home to family. I have an adventure every morning getting up."
Brad also revealed his favourite movie role was in 2005's 'Mr. and Mrs. Smith', because it was when he met Angelina.
{{/usCountry}}Brad also revealed his favourite movie role was in 2005's 'Mr. and Mrs. Smith', because it was when he met Angelina.
{{/usCountry}}Explaining his decision, he told Rolling Stone magazine: "Because you know. six kids. Because I fell in love."