Ben Affleck and Jennifer Garner are to spend Christmas together.

Ben Affleck

Ben Affleck

The 'Batman V. Superman' actor may have split from his 43-year-old actress wife in June but they are planning to celebrate with one another on December 25 for the sake of their three children, Violet, 10, Seraphina, six, and Samuel, three.

A source told E! News:"They will be together as a family. They continue to put the kids first and spend time with each other for the sake of their children."

And the former couple - who are said to be "in a good place right now" - are planning to leave Los Angeles for a festive break in snowy Montana.

It was previously claimed Ben, 43, and Jennifer are "committed" to parenting together and putting their differences aside for the sake of their kids.

A source said: "They are a unit. They are all about the kids and making sure they are OK. They are committed to parenting together."

Even while Ben has been shooting the upcoming film 'Live By Night' in Boston, he ensured he made regular trips back to Los Angeles to see the children.

The source said: "[He] has spent every possible hour of the day working. He's the first to arrive and the last to leave."