The book and the film have similarities and differences, which is normal, since the film uses the book as the main source, but it must provide modifications and adapt the story to be attractive to the cinema. The book and film are almost the same, maintaining the same story, however, in the film the characterization of the old man is different from the characterization of the book, since in the film he has a beard and not in the book. In addition, in the film Hollis does not fall from a mountain, as in the book.
