Is this why Chris Pratt and Anna Faris split?

A new report suggests Anna Faris and Chris Pratt split over differences of attitude towards children. Photo/AP

A new report suggests the reason behind Chris Pratt and Anna Faris' split was a disagreement over wanting more kids.

The Scary Movie star is said to have been keen to extend their family, but the Jurassic World actor - who shares four-year-old son Jack with the blonde beauty - is not believed to want another child for the foreseeable future.

Sources told gossip website TMZ that Faris wanted a traditional family based in Los Angeles, but Pratt - who jets all over the world for movie commitments - didn't think he could juggle having a growing family with his workload.

The couple announced on Sunday they had split after eight years of marriage, but were determined to be devoted parents to their son.

Anna and I are sad to announce we are legally separating. We tried hard for a long time, and we’re really... https://t.co/Zw5HcMQCZ3

— chris pratt (@prattprattpratt) August 7, 2017

Insiders also revealed the pair have set about planning their divorce but have an amicable relationship, with both the 40-year-old actress and the 38-year-old star said to be "incredibly sad" about their break up.

In similar statements posted on their social media accounts on Sunday, the pair admitted they were "really disappointed" about the breakdown of their marriage, and insisted they "tried hard" to make it work.

Pratt wrote on Facebook: "Anna and I are sad to announce we are legally separating. We tried hard for a long time, and we're really disappointed. Our son has two parents who love him very much and for his sake we want to keep this situation as private as possible moving forward. We still have love for each other, will always cherish our time together and continue to have the deepest respect for one another."

It came after Pratt praised Faris in April at his Hollywood Walk of Fame star ceremony.

He said: "I want to thank my wife Anna, I love you. You've given me so much. You gave me the greatest star in the galaxy in my little boy, I love him and I love you.

"We have bonded to make this molecule that is more important to me than air or water, and without it none of this means anything to me. With every challenge, with every day, week, month, decade, we become more bonded."

-Bang! Showbiz