A film can reproduce a book’s dialogue, costumes, and famous scenes and still miss what made the book worth reading. Another can change a character’s fate and make the source’s central idea clearer. Counting differences won’t tell you which adaptation works. Asking what each difference does will.
That matters across books, comics, and games, but the challenge isn’t identical in each case. A novel can spend pages inside someone’s thoughts. A comic controls what appears between panels. A game can make a player feel responsible for an action. Screen stories have their own strengths—and they have to earn effects that the source can create in other ways.
The examples below discuss plot turns in Dune: Part Two and an episode of The Last of Us.
Faithful to what?
“Faithful” sounds like a simple standard until you ask what should be preserved. Is it the sequence of events? A character’s personality? The ending’s meaning? The experience of uncertainty, dread, or delight?
Those things don’t always travel together. A movie might keep every major plot point but flatten a morally difficult character into a straightforward hero. Another might cut half the incidents and preserve the character’s contradictions. The second may be closer to what readers valued, even if its plot summary looks less familiar.
The useful distinction is between a story’s details and the work those details perform. A scene might introduce a friendship, expose a lie, establish a rule of the world, and set up a later choice. If an adaptation removes it, something else has to carry those jobs. If it changes only the setting or dialogue while keeping those jobs intact, the loss may be small.
Michael Ondaatje’s account of adapting his novel The English Patient offers a practical example. Scenes of Kip’s training in England were left out, while his bomb-defusing work moved into the film’s present-day action. A flashback would have interrupted the main story and lacked suspense because viewers already knew he survived. The material mattered; its original placement did not serve the film in the same way.
What changes when a story reaches the screen
Thoughts need another form
On the page, a narrator can tell us what someone wants and what they’re ashamed to admit wanting. An actor can reveal that conflict through a pause, an evasive answer, or a look at someone who isn’t watching. Editing can place two moments beside each other and let us make the connection. Voice-over is an option, too, but it isn’t a direct substitute for prose: spoken thoughts can explain what a performance has already made clear.
In No Country for Old Men, Cormac McCarthy gives Sheriff Ed Tom Bell extended first-person reflections. The Coen brothers’ film keeps a small amount of that narration and lets landscape, performance, and long stretches without music carry much of the rest. Bell’s troubled view of the world survives without the film trying to recite the novel.
That suggests a good test for any cut monologue: Can you still understand the conflict beneath the character’s actions? If not, the adaptation may have removed the means of understanding them, not merely some words.
Time and structure become more visible
A reader can pause after a chapter, reread a passage, or absorb a long detour at their own pace. A film has to manage the audience’s attention in one sitting. A TV series has room for detours, but it also has to decide where episodes begin and end, and which threads deserve sustained attention.
Compression is therefore not automatically a flaw. Combining minor characters can give a relationship enough screen time to matter. Moving an event earlier can make a later decision intelligible. Expanding a brief encounter can give an episode its own dramatic shape. The question is what those choices cost. If a streamlined mystery becomes easy to solve, or a difficult friendship becomes instant affection, the faster version may have lost the tension that held the story together.
Sometimes the source’s form is the problem to solve. John Fowles’s novel The French Lieutenant’s Woman uses a narrator and multiple endings to challenge what readers expect from a Victorian romance. The 1981 film adds a parallel story about actors making a film. It doesn’t reproduce the novel’s devices; it finds a screen-based way to keep the audience thinking about stories, roles, and possible outcomes.
Images and interaction don’t mean the same thing on a screen
Comics already tell stories with images, but their images aren’t simply movie frames waiting to move. A reader chooses how long to study a panel and how quickly to cross the gap to the next one. Film controls duration through performance, camera movement, sound, and cuts. Recreating a panel precisely can be thrilling; doing it repeatedly without a dramatic purpose can make a scene feel like a display of recognizable images rather than a scene with momentum.
Games pose a different problem: participation. In a game, finding supplies, surviving a fight, or exploring a place can make danger feel personal because the player must act. Watching a character repeat those tasks doesn’t create the same investment. A TV adaptation may need to replace a playable sequence with a relationship, a choice, or a consequence that holds a viewer’s attention.
The strongest changes find a new route to the same stakes
The third episode of HBO’s The Last of Us is a clear case. In the game, Bill’s town works partly as an encounter to play through. The show instead spends much of the episode with Bill and Frank’s life together. Series creators Craig Mazin and Neil Druckmann described the change as an expansion of an argument already present in the game: Is staying alive enough, or does survival matter because there is someone to care for? The episode changes how Bill’s story unfolds while making that question bear on Joel’s next choice.
It’s also fair to think the detour takes too much time from Joel and Ellie. “It fits the theme” is not a free pass. A new scene must work as drama and earn its place in the larger story. The Bill and Frank episode gives viewers a way to weigh both claims rather than settle the argument by checking whether events match the game.
Dune: Part Two makes a more contentious change. Its ending puts Chani’s rejection of Paul’s rise to power in sharp focus. Director Denis Villeneuve explained his decision to expand Chani’s and Jessica’s roles as a way to give viewers critical distance from Paul. On screen, Chani’s response makes it harder to read his ascent as an uncomplicated victory.
That choice clarifies one interpretation of Frank Herbert’s story, but it also alters the relationship between Paul and Chani. Both observations matter. A change can bring a theme forward while making a character feel different to someone who knows the book. Judging it means weighing the sharper warning against what the film gives up—not pretending one cancels out the other.
Changes can also be much smaller. Netflix’s live-action One Piece introduces Zoro through a fight drawn from backstory mentioned later in the manga, rather than first showing him as Luffy finds him. Showrunner Matt Owens described the revised introduction as a way to establish Zoro’s ability immediately while drawing on material already in the source. It is a useful model for rearrangement: the series changes when viewers learn something without inventing a wholly new reason to care about the character.
When a change breaks the story
The weakest adaptations often preserve what is easiest to recognize and alter what is hardest to replace. A famous line remains, but the decision that once gave it force is gone. A villain wears the right costume, but loses the belief that made them unsettling. A relationship reaches the expected ending without showing the time or conflict that made it plausible.
Watch for changes to cause and effect. If a protagonist’s defining choice no longer costs them anything, the story may have kept its plot while changing its values. If a character who once drove events now exists mainly to explain the world to someone else, a seemingly efficient rewrite may have hollowed out a point of view.
The opposite mistake is treating every addition as enrichment. Extra backstory can reduce a character to one neat explanation. More episodes can give side plots room to breathe—or leave the main conflict waiting while the show spends time on people it has not made compelling. Neither closeness nor distance from the source guarantees quality. The new version still has to make its own scenes, performances, and pacing work.
Five questions to ask after watching
When an adaptation leaves you delighted or irritated, these questions can make the reaction more precise:
- What did the source make me care about? Name a relationship, conflict, idea, or feeling—not just a scene you wanted to see.
- How did the screen version create that effect? Look at performance, framing, sound, editing, and the order in which you learned things.
- What job did a changed or missing scene once do? Did another scene take over that job, or is something important now absent?
- What did the change gain, and what did it cost? A clearer theme may come with a simpler character. Better momentum may come with less room for ambiguity.
- Does the adaptation stand on its own? A newcomer should be able to follow its stakes. Familiarity with the source can deepen the experience, but shouldn’t be required to supply missing motivation.
An adaptation works when its changes feel like choices made for the story rather than shortcuts around it. That doesn’t mean every viewer must prefer the new version. It means the film or show understands what was powerful about its source, then uses the tools of its own medium to make that power felt again.