In order not to linger with a very broad introduction, in the following paragraphs we will discuss the advantages and disadvantages of films, compared to books, if we discuss the same work transposed in the two environments. We will divide the section into two parts, one discussing the issues in favor of books, and the other those in favor of movies and series, both for the big screen and for television:
A vast literary work can even fill several thousand pages, over several volumes. Lev Tolstoy's "War and Peace" is an example, or we can think of JRR Tolkien's "Lord of the Rings." Such an amount of text allows the action to take place on countless levels, with dozens of characters and the action stretching over years. It is difficult to incorporate such complexity into the film, which is limited in time, rarely offering more than two hours of action.
Exceptions exist, of course, and here we can mention, again, "The Lord of the Rings" – the screenplay of Peter Jackson, who, although he cut from the contents of the book, is considered one of the best transpositions of a literary work on film, of all times.
The series, of course, has an advantage, as they can add up, with all the episodes, much more space for the development of the characters and for the unfolding of the events, compared to a standard cinematographic film.
Impact on brain development
Some studies have shown that, at the brain level, children and adolescents who spend a lot of time reading show more developed language centers than those who consume content in the form of movies.
The explanation comes from the fact that it takes active effort on the part of the reader to imagine the images and events described in the text, based on the written word, while in movies, all visual elements come ready, without any imaginative thing from the spectator. Of course, the considerable enrichment of the vocabulary is added, through books, a fact known on a large scale.