The differences between J.R.R. Tolkien's book The Fellowship of the Ring and the Peter Jackson film screenplay of the same name are fairly easy to document because, in both the book and film, the story maintains a single thread from beginning to end. While there are some changes in sequence, the storyline is well aligned between the two sources. The differences between them are described here in considerable detail. The order is intended to be that of the film, and it is also the intent that this article should eventually include all significant differences between the book and film.