But even for adaptations that are trying to be more traditionally faithful to a text, capturing the literal words on the page is not always a priority.
But he's actually removing the vast majority of Frank Herbert's dialogue and trying to convey things like conflicts between the story's religious systems through the movie's visuals.
It's a debate that's become a little more mainstream recently because Amazon is in the middle of releasing Rings of Power, technically a Tolkien adaptation.
A lot of the complaints people have about Rings of Power could easily apply to the Peter Jackson movies, complaints like how accurate they are to the lore, or the characters, or the plot points of the source material.
The dialogue in these movies may be filled with Tolkien's words, but a lot of what happens in them doesn't feel like anything he ever would have written.
Obviously, including it would have prolonged the ending of Return of the King even more, and the story of Frodo and the Ring is the focus of the movies.But still, you can't change things without changing things.
In the book, he's already carrying around Isildur's sword, already planning to retake the throne, and simply biting his time until the right moment to reveal himself.
Losing all of this affects the story because Aragorn is really meant to convey the traits of the perfect king, so when the movie shows him initially despising his right to rule.
But because they also more clearly contextualize his reluctance as a result of his feeling a greater kinship with the world of elves than the world of men.
But still, it's nice that the extended editions put some of Tolkien's textures back in, like his idea that Aragorn retaking the throne is part of a grand conspiracy woven by Gandalf.
He's great, but taking a detour away from the tension with the Ringwraiths just as the adventure is getting started is the sort of thing that's a lot more likely to kill the pacing of a movie than the pacing of a book.
But anyway, if you watch the extended editions, you may have noticed they put some of Tom Bombadil's singing back into this otherwise frivolous scene with Treebeard.
It gets some of that flavor back into the movies, even if it doesn't add anything to the plot.The way the extended editions include so much of Tolkien's poetry and songs should be a pretty solid indication of how much Jackson wanted his voice to stay in these movies.
In the books, Faramir is an extraordinarily noble man whose response when he's faced with the temptation of the Ring is to say that he would not even pick it up if he found it on the side of the road.
If you've read the book, it's jarring, and not just because the movie gets the plot wrong, but because it seems like the filmmakers are uncomfortable with the heroism written for these characters by Tolkien.
We live in an era where every hero is being torn down.And when you watch the Two Towers now, it can feel like it's just another example of someone thoughtlessly doing that.
Peter knew it right from the word go, you don't intercut the huge climax of Helm's Deep with the huge climax of the confrontation with Shelob, both would kill each other, they'd cancel each other out.