"The Princess Diaries" star Anne Hathaway celebrated the movie's 16th anniversary last week.
"Happy Birthday Princess (Thanks Garry) #sweetsixteen #mia4evah," she captioned the video, paying tribute to the movie's late director, Garry Marshall.
Hathaway played Mia in "The Princess Diaries" and its 2004 sequel, "The Princess Diaries 2: Royal Engagement."
Julie Andrews, who portrayed Mia's grandmother Clarisse, discussed the possibility of a third film in February.
"I think we might do it in honor of [Garry]," she added. "Annie had an idea that she wanted to pursue about it, and I'm all for it, so if she'd like to... [I'm] not sure what the status is right now."
"The Princess Diaries" is based on the Meg Cabot novel of the same name. Cabot confirmed interest in a third film in an interview with Entertainment Weekly in June, but declined to share details.
Hathaway will star in a number of upcoming movies, including "Ocean's Eight" with Sandra Bullock and "Nasty Women" with Rebel Wilson.