Jennifer Garner Explains How Ben Affleck Created the 'Best Dad Moment in History'

PHOTO: Jennifer Garner arrives at Sony Pictures Releasings "Miracles From Heaven" Photo Call in West Hollywood, Calif., March 4, 2016. Jon Kopaloff/Getty Images
Jennifer Garner arrives at Sony Pictures Releasing's "Miracles From Heaven" Photo Call in West Hollywood, Calif., March 4, 2016.

Although the two are in the middle of a divorce, Jennifer Garner said her estranged husband Ben Affleck scored tons of points at their son's recent birthday party.

When her son Samuel asked for a superhero party to celebrate his fourth birthday on Feb. 27, Garner said Affleck went all out with his costume.

"We all dressed up," Garner, 43, told Extra. "I dressed up as a ninja, and Ben dressed up as Batman for Sam, which was the best dad moment in history. It was pretty sweet."

Affleck, 43, didn't have to search hard for his costume as he's set to play the Caped Crusader in the upcoming film, "Batman v Superman: Dawn of Justice," out March 25.

Garner's compliment came after her very candid interview in Vanity Fair.

The "Miracles from Heaven" actress said in the magazine that despite their split in June 2015 after 10 years of marriage, their relationship was authentic.

"I didn't marry the big fat movie star; I married him," Garner said. "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."

She continued: "He's the most brilliant person in any room, the most charismatic, the most generous. He's just a complicated guy. I always say, '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."