United Kingdom, March 9 -- Natalie Portman and Benjamin Millepied are determined to be the "best co-parents they can be".

The Oscar-winning actress and Benjamin, 46, recently finalised their divorce, and the former couple are now focused on co-parenting their children - son Aleph, 12, and daughter Amalia, seven.

A source told PEOPLE: "Her biggest priority has been ensuring a smooth transition for her children.

"She and Ben really love their kids and are equally focused on being the best co-parents they can be. Nothing is more important."

Natalie, 42, filed for divorce from Benjamin in July, and although she initially struggled to come to terms with their split, Natalie's friends have rallied around the actress over recent months.

The...