Hanna is a 2011 action adventure thriller film that contains some prominent fairy tale elements, directed by Joe Wright. The film stars Saoirse Ronan as the title character, a girl raised in the wilderness of northern Finland by her father, an ex-CIA operative (Eric Bana), who trains her as an assassin. Cate Blanchett is a senior CIA agent who tries to track down and eliminate the girl and her father. The soundtrack was written by The Chemical Brothers.
Based on the above text, what's the best answer to this question: is the movie hanna based on a book?
yes