Garner made a decision to get in on the action, too recording some voice-overs to go along with the video that she shared on her Instagram Stories. There were digs at Garner's ex-husband, Ben Affleck, too, with one tweet proposing the realization was that Michael Keaton was the best Batman.
And in her third joke, she said, "Can't wait to work with Lena Dunham. Wait, where is my wallet?" she said. In another scenario, Jennifer alluded to the tagline of her popular Capital One Venture ads. "Wait, did I sign a nudity waiver?"
Totally embracing her viral reaction, Garner hopped onto her Instagram story on Wednesday.
Her explanation did not stop social media users from coming up with other humorous explanations.
I'm convinced Jennifer Garner has some sort of second sight.
Maybe she'd just been informed of the cost of her earrings, which were reportedly worth $605,000 (£438k) alone.
Pretty much as soon as the footage hit our screens she was a meme, with many predicting what on earth she was thinking about. Garner isn't usually this unguarded, so to see her so plainly vulnerable - and concerned about something, whatever it is - is thrilling.