The stop-motion scenes in the desert were mosty created using paper, even the Little Prince was made out of paper clay.
Olivier d'Agay, author Antoine de Saint-Exupéry's grand nephew and spokesman for the Saint-Exupery estate, said in an email to Los Angeles Times in January 2016: "The movie is extremely faithful to the book. The story of the little girl, her friendship with the aviator, her conflict with her mother, [illustrate] the place of children today in a tough world of competition and solitude. It's why the two stories are really well linked. This is the originality and the genius of that movie: to show that the magic and the power of the book is still operating today."
Mark Osborne revealed that the book deeply affected him on a personal level when it was given to him by his wife years ago, back when they were dating. The two were college students at the time and trying to keep their long-distance relationship alive. "The Little Prince brought us back together," he admits. "I paid very close attention to it. It means so much to me and to everyone who has read the book, because it really connects you to the significant relationships and friendships in your life." Osborne's wife is thanked in the credits.
Marion Cotillard dubbed The Rose in both the English and the French version.
The Little Prince became the most successful French animated film ever, grossing $97 million worldwide.
The Werth Academy school in the film is named after the writer Leon Werth, to whom the Little Prince book is dedicated ("To Leon Werth, when he was a little boy").
Despite being produced by French companies, the movie was written, directed and voiced first in English. However, it was the French version, which was recorded afterwards, that was screened in the majority of countries along with their local versions until October 2015.