A woman is suing Disney for purportedly ripping off her life story in Frozen , the highest-grossing animated film of all time.

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Isabella Tanikumi said Frozen copies characters, the story, and plot of her autobiography "Yearnings of the Heart," which details her transition from life in the Andes Mountains to American culture. The lawsuit is worth $250 million, according to TMZ , and Tanikumi's claims rest on the argument that Disney plagiarized her work, rather than basing the movie on Hans Christian Andersen's book The Ice Queen.As for the Frozen property itself, Disney announced Frozen Fever, a short film featuring Anna, Elsa, Kristoff and Olaf from the first film. The project, which details Elsa's birthday and the celebration everyone is planning for her, is coming next year, and marks the reunion of the Oscar-winning voice actors and crew Stay tuned to IGN as the lawsuit, and other Frozen news, continues to unfold.

Mike Mahardy is a freelance journalist writing for IGN. He also rants about Kurt Vonnegut on Twitter at @mmahardy.