I have such a fondness for stories with child protagonists that accurately portray the world from an inexperienced (or naive) point of view. There is something clearer about the child perspective that reminds you, as an adult, of what you remember things to be like when you were that age - undoubtedly different from what you probably think now.
Another plus for capturing the specific regional and cultural influences of the deep South in the Great Depression years.
And a plus for the courtroom scenes; I've never seen the whole movie, but I have seen the courtroom scene and it is especially moving in both the movie adaptation and the original novel's text. Bravo.