Entertainment Movies 'The Princess Diaries' Is 20! Anne Hathaway Celebrates 'Film That Launched a Thousand Sleepovers' Anne Hathaway shared a series of photos with her Princess Diaries castmates and director Garry Marshall Thursday in honor of the film's 20th anniversary By Jen Juneau Jen Juneau Twitter Jen Juneau is a digital news writer for PEOPLE. A '90s teen and horror film connoisseur, she started at the brand in 2016, after a decade of working as a technical writer and then moonlighting as a journalist beginning in 2013. Originally from New Orleans, Jen grew up both in NOLA and Florida and eventually attended the University of Central Florida in Orlando (still her home base!), where she earned a bachelor's in English/technical communication, with a minor in magazine journalism. People Editorial Guidelines Published on July 29, 2021 12:13 PM Share Tweet Pin Email Anne Hathaway in The Princess Diaries. Photo: Alamy Happy 20th birthday, The Princess Diaries! Anne Hathaway marked the iconic coming-of-age royal tale's two-decade milestone on Thursday, sharing a gallery of photos from the film that included costars Julie Andrews, Mandy Moore, Heather Matarazzo, Sandra Oh and Larry Miller. One standout behind-the-scenes shot, though, featured Hathaway posing alongside Andrews, 85, and director Garry Marshall, in which both women flashed smiles while holding corndogs. "Miracles happen … Happy 20th Birthday to #theprincessdiaries, AKA the film that launched a thousand sleep overs 👑," Hathaway, 38, wrote alongside her nostalgic post. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human-interest stories. Julie Andrews, Garry Marshall and Anne Hathaway on the set of The Princess Diaries. Anne Hathaway/Instagram RELATED GALLERY: The Princess Diaries 3 Might Be Happening! See the Cast of the Original Then and Now The Princess Diaries launched a then-18-year-old Hathaway to fame after its 2001 debut and even inspired a sequel, 2004's The Princess Diaries 2: Royal Engagement. Hathaway always knew the story of her character Mia Thermopolis' journey to Genovian royalty, based on Meg Cabot's book series, would be a hit. As she told PEOPLE back in January 2019, "Getting the script, it just had that feeling. ... I touched it, and it was electric." And starring opposite Andrews marked "a dream come true" for the actress, who would go on to win an Academy Award for her role as Fantine in 2012's Les Misérables. "Getting to make it and be on set every day, I got to hug Julie Andrews every day," Hathaway said. "That part was also very, very, very magical. Then it came out and it was received. That part even, by the way, was magical." RELATED VIDEO: Anne Hathaway Looks Back at Making The Princess Diaries Fans of the franchise may be getting a third installment, as Hathaway revealed the same month of her PEOPLE interview that there is a script for a new Princess Diaries film. "We don't want to deliver anything until it's ready, but we're working on it," she said on Watch What Happens Live at the time. "I want to do it ... Debra Martin Chase, our producer, wants to do it. We all really want it to happen. It's just we don't want to unless it's perfect because we love it just as much as you guys love it." While Andrews — who played Queen Clarisse Renaldi in the movies — and Hathaway both previously stated they'd return for a third film in the franchise, Andrews revealed on The Talk @ Home in April 2020 that she still hadn't seen a script or plans. "It's long been talked about but nothing has sort of been on my desk or anything like that," she said. "I think I would. I'm getting awfully old and crotchety. I'm not sure if it's the right timing, but I think to work with Annie would be lovely again. And yeah, sure I would be up for it. I think we should wait if the script comes in, just wait for that."