The Lord of the Rings movies directed by Peter Jackson are generally considered to be faithful adaptations of J.R.R. Tolkien’s books, but there are some differences between the two.
One major difference is that the movies omit or simplify certain subplots, characters, and events from the books to make the story more streamlined and accessible to a wider audience. For example, Tom Bombadil, a mysterious and powerful character from the books, is entirely absent from the movies, and the character of Arwen, who has a relatively minor role in the books, is given a more prominent role in the movies.
Another difference is the portrayal of some of the characters. In the books, for example, the character of Faramir is more noble and selfless than he is depicted in the movies. Additionally, the movies portray the character of Gimli, a dwarf, as more comical and lighthearted than he is in the books.
Despite these differences, the movies do stay true to the overall spirit and themes of Tolkien’s books, and many fans of the books have praised the movies for their faithful adaptations.