Here's a breakdown of what the movie covers:
Similarities to the book:
* Eragon's discovery of Saphira: The movie portrays this discovery almost identically to the book.
* Eragon's training with Brom: The movie depicts Eragon's training with Brom, including the use of the sword and the lessons on the history of dragons.
* The attack on the Varden by the Ra'zac: This key moment from the book is included in the movie, with Eragon's escape from the Ra'zac and Brom's sacrifice.
* Eragon's journey to the Varden: The movie includes Eragon's travels to the Varden, where he learns more about the war against Galbatorix.
* The battle at Farthen Dûr: The movie features the major battle at the dwarf city, with Eragon fighting alongside the Varden.
* Eragon's bond with Saphira: The movie emphasizes the strong bond between Eragon and Saphira, although it simplifies their relationship compared to the book.
* The arrival of Murtagh: The movie introduces Murtagh as the rider of the dragon Thorn, highlighting his connection to Eragon.
Differences from the book:
* The character of Arya: The movie reduces Arya's role significantly, removing her importance as a leader within the Varden and diminishing her relationship with Eragon.
* The development of Eragon's character: The movie simplifies Eragon's character arc, focusing primarily on his physical training rather than his internal struggle and growth.
* The presence of the elves: The movie removes the elves as a major force in the story, simplifying the political landscape.
* The depth of the world: The movie omits many of the complexities of the world-building, including detailed descriptions of the history, geography, and culture of Alagaësia.
* The emphasis on romance: The movie adds a romantic element between Eragon and Arya, which is absent in the book.
* The ending: The movie's ending differs from the book's ending, leaving out important plot points and leaving Eragon's journey unresolved.
Overall, the movie adaptation of "Eragon" provides a condensed version of the book's story, focusing on action and spectacle. However, it sacrifices depth of character, world-building, and the overall complexity of the plot. Many fans of the book consider the movie to be a disappointing adaptation that doesn't fully capture the spirit of the original story.