These different types of interlace are also recreated in the film, though it does not incorporate all of Tolkien's characters and events, and cross-cutting generally serves to further the effects of continuity editing expected by today's film audiences.
Much of the structural interlace is of a light-handed familiar kind that hardly warrants the label; and it tends to be "true" to the book, if not always taken exactly from it, as in Bilbo's story-telling of his adventures in The Hobbit, references to Bilbo's adoption of Frodo, and the obvious familiarity of the hobbit children with Gandalf's fireworks.
Of these events, only the presentation of Gandalf's incarceration and the wounding of Frodo are developed in the film as cross-cut interlace.
2) in Rivendell is an opportunity for interlace taken up in both text and film, but it is handled differently in each.
In the film, the Sword, initially the means of Isildur's defeat of Sauron, and Arwen's jewel both become props marking the later interlace of an expanded treatment of Elrond's "council.
More noteworthy in the film, however, is the manner in which the interlace develops in the expanded treatment of Elrond's "council" such that it includes Elrond's meetings with Gandalf before it and Aragorn after it, and, as we shall see, with Galadriel and Arwen.
This, like the repetitions and expansions of the account of Isildur and of Gollum's torture, is an instance of interlace that serves to enlarge the "matter"; in this case by enhancing the role of Gandalf's advice and adding depth and sense to Frodo's choice as well as, by association, the audience's feeling of pity, perhaps for Gollum, and certainly for Frodo.
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