Judy Greer Shares ’13 Going on 30′ Throwback Photos for 20th Anniversary

Judy Greer is thanking fans for 20 years of 13 Going on 30 love.

On Wednesday, April 24, the actress shared some behind-the-scenes throwback photos from the set of the 2004 romantic comedy, in which she costarred alongside Jennifer Garner and Mark Ruffalo.

The first snapshot showed Greer, 48, and Garner, 52, holding cups of coffee as they stood inside their characters’ office building, in front of a sign for the fictional Poise magazine. The second image featured Garner speaking with crew on the movie’s set, while the third slide was a group shot that also included Ruffalo, 56, and their costar Sam Ball.

“20 years of 13 Going on 30!!! Thank you for watching this movie for two decades, we ❤️ you!!” Greer wrote in her caption.

“I’ve decided it’s going to be totally awesome! ♥️ ,” star Garner commented, going on to joke, “Thank you for listening to twenty years of my nonsense, @missjudygreer.”

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Earlier this week, Garner, Greer and Ruffalo caught up on Zoom as they reminisced about the film, in snippets shared in a joint post on Instagram.

“Twenty years. We are three Boomers braving zoom — because we want to thank you. 👴👵👵” the actors wrote in the caption. “To every person who has loved this movie along with us: Thank You. We see you, we appreciate you and we love you back. Forever thirty, flirty and thriving! 💕.”

Following their reunion, Ruffalo said in a message to the fans, “Thank you everyone! You’ve been the best fans of this movie that anyone can possibly have! Thank you, keep coming back.”

“We wish we could squeeze you,” Garner commented while motioning cuddly fingers to the camera. Said Greer, “Number one! Best fans ever!”

“To another 20 years,” Ruffalo added.

In a clip posted on Instagram Stories from their chat, the trio shared what13 Going on 30 taught them. “I think we saw and we found in this movie like the grass isn’t always greener, you know, you want to grow up so fast but you’re missing out on a lot,” Greer revealed.

Ruffalo then shared some words of wisdom for fans watching as he said, “Hold on to your innocence.”

“Hang in there, that’s the main thing,” Garner said, giving some advice also. “Have faith in who you’re becoming — even if it’s messy.”

The actors’ posting of their mini reunion came shortly after Garner told PEOPLE earlier this week that her time making 13 Going on 30 was “magical.”

“It wasn’t a huge movie,” she said of her breakout role as 13-year-old Jenna Rink, who is transported into her future self as 30-year-old fashion editor. “It was the biggest paycheck any of us had ever had, even though it was not crazy. It was such a step up. We didn’t know if it would be any good or not, but we were all so in it to win it.”