No. The film is loosely based on the Hans Christian Andersen fairy tale The Snow Queen, which was first published in 1845. While the Disney version pulls from elements of the original fairy tale, the finished product is a largely original story.
In 2014, an author named Isabella Tanikumi filed a $250 million lawsuit against Disney, alleging the $1.2 billion-grossing film was a ripoff of her memoirs, particularly one titled “Yearnings of the Heart” which described her family's struggles in moutainous regions of Peru.
The lawsuit made headlines around the world. However, it was dismissed in 2015. As per Nj.com, U.S. District Court Judge William Martini said the similarities between "Frozen" and Isabella Tanikumi's memoir, "Yearnings of the Heart," with its themes of sisterly love and tragedies overcome, were "tenuous at best."
"The Plaintiff's complaint will be dismissed because the similarities she alleges between her memoir and 'Frozen' are not substantial," Martini writes. "The two stories are entirely different."
Disney's Frozen is the biggest animation hit of all time. Critics were iffy on its release, but the icy tale of devoted sisters and its showstopping songs have won over children around the world. Why can't they let it go? Here's how Elsa, Anna and Olaf conquered the world shared by Theguardian.com.