Jennifer Garner is "open" to reuniting with Ben Affleck.

The former Alias actress split from the Batman v Superman: Dawn of Justice star last June after 10 years of marriage, but they have remained friends for the sake of their three kids, Violet, 10, Seraphina, seven, and four-year-old Samuel.

After travelling to London with the actor while he shoots Justice League: Part One - in which he reprises his role as Batman - the pair have grown even closer.

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A source told the new issue of Grazia magazine: "Jennifer followed Ben to England and the trip has given her a whole new outlook on their future.

"She still feels conflicted, and she's only telling close friends that she's started to open up to the idea that they could get back together. She thinks they have a long road ahead of them, but Ben is already proving to her that he's committed to changing."

The 44-year-old star is said to have reconsidered her future with the 43-year-old actor following a romantic trip to Paris.

The source said: "Jen vowed never to go back to Ben, but recently that's all changed. The truth is Ben desperately wants her back and he's been doing everything in his power to show Jen that he means it, that he's sorry and he's changed."

The Juno actress recently admitted Ben is the love of her life.

She said: "I didn't marry a movie star; I married him. And I would go back and remake that decision. I ran down the beach to him, and I would again. You can't have these three babies and so much of what we had. He's the love of my life. What am I going to say about that? He's the most brilliant person in any room, the most charismatic, the most generous.

"When his sun shines on you, you feel it. But when the sun is shining elsewhere, it's cold. He can cast quite a shadow.

"The main thing is these kids - and we're completely in line with what we hope for them. Sure, I lost a dream of dancing with my husband at my daughter's wedding. But you should see their faces when he walks through the door. And if you see your kids love someone so purely and wholly, then you're going to be friends with that person."

- Bang! Showbiz