A New Jersey-based author is suing Disney, claiming the movie Frozen is based on two of her books.

Entertainment Weekly reports that Isabella Tanikumi claims Frozen infringed on the copyright of two of her books, Living My Truth and Yearning of the Heart, which were taken from Tamikumi's life story.

EW reports that Tanikumi offered "18 instances of similar material, including details on the village, the sisters, the older sister accidentally hurting the younger sister, the younger sister losing her memory, and even two male characters that Tanikumi had named Hans and Christoff." The two main male characters in Frozen are named Hans and Kristoff. (Link to lawsuit courtesy E! Online.)