What is the importance of the film, To Kill a Mockingbird, in the novel Mockingbird by Kathryn Erskine?

The movie, To Kill A Mockingbird, is important because Scout, who is the lead character in both the book and movie, is Devon Smith's nickname for his little sister, Caitlin. She identifies with the movie so much that she sees her father as Atticus Finch, the hero of the story.