They were spotted taking a morning stroll together in Los Angeles.
It looked like an amicable meet-up between them, as the Guardians of the Galaxy star cracked a smile while walking with his former flame.
It's the second time they've been together this week. The A-list actors took their son Jack out for a walk in Santa Monica on Monday.
Could the walk have been about their divorce, getting back together, or co-parenting? They announced their separation about a year ago on August 6, 2017. He then filed for divorce from her on December 1.
Why do you think Chris and Anna got together again? Sound off in the comments.