Throughout the movie you can see ladies in the background who are Genevieve's sister from the 12 Dancing Princesses. They even wear the same dresses.
During the 'At The Ball' sequence, you can see Sagi holding Genevieve's dress from the 12 Dancing Princesses movie.
The film's kingdoms of Paladia and Apollonia are based on Italy. The buildings have a renaissance look, many characters have tans and/or dark hair, and Rosella, Antonio, Luciana, Ariana, and Marissa have Italian names.
In an attempt to heal the nation, on February 14, 2021, podcast hosts Richard Martin and Alexander "AJ" Jones of the Cult Popture Podcast released an 18+ hour comprehensive podcast reviewing the 37 Barbie films. The retrospective took over a month to prepare and features numerous guest speakers as well as an original song created specially for the podcast.
Jullian and Woofie from The Princess And The Pauper can be seen in the movie during the ball scene.