Sofia Carson wrote and performed all of the original songs in real life.
The title page of the novel Purple Hearts, by Tess Wakefield, reads "Based on the story by Kyle Jarrow." And the book's Acknowledgments reads, "And finally, big thanks to Kyle Jarrow for the inspiration." In the credits for the movie, Liz W. Garcia and Kyle Jarrow are listed as the writers, with no mention of Tess Wakefield although the movie closely tracks the book.
Sofia Carson's 2nd Netflix film after Feel the Beat (2020).
No relation to the 1984 film of the same name Purple Hearts.
Sofia Carson, Nicholas Galitzine, and Chosen Jacobs have appeared in Cinderella-themed movies. Carson was in A Cinderella Story: If the Shoe Fits (2016), Galitzine was in Cinderella (2021), and Jacobs was in Sneakerella (2022).