"Bird box", the post-apocalyptic movie that gained notoriety after the great marketing done by netflix upon its name, but then, did all this marketing make sense? No, "Bird Box" did not have to be a cult movie with great acting, fantastic technique and admirable script, it just had to be a charismatic brockbuster, but neither of the two things the long directed by the already experienced Susanne Bier succeeds, is all bad and not horrible as the great criticism has been labeling it in recent weeks, it's just an ordinary movie. The way the script works is very interesting, if using several timelines to close a cohesive story, with beginning middle and end, this is good, but the same boldness applied in the structure could have been applied in the script itself, which is very watery with sugar, with poorly developed characters, superficial plot, lack of chemistry, bad rhythm ... A complete roller coaster, the movie improves and worsens constantly, again praising its script structure and the only good and complex development of the film, Malorie's relationship with the two children, something that is more maternal instinct than proper love. This is very good in the movie. Obviously, the violence contained in the book was diminished in the film, even by being on netflix, but more things were lost, as the various symbologies involving depression, maternity, suffering, hope, all this becomes superficial in the film and surrendered to an action secondly, the personification of the creatures is also medium, could be worse if they had a form, but symbolize their presence with wind, and to show that to the viewer kills the tension, it should be something more animalistic as it is in the book, where the they are symbolized with heavy steps. Although the film has a great deal of tension, not necessarily for the creatures, but for the agony of not seeing and for the crazy people who are well used in the film, mentally weak human beings who are passionate about the visualization of the divine or the monstrosity. A palette of gray colors, open and closed plans, good makeup and weak soundtrack sum up the technique of the long. Sandra Bullock is tough and well in her role, Trevante Rhodes also, although together, there is no chemistry, for me, the best character in the film is John Malkovich Douglas, who steals the scene whenever he appears and ends up serving as a crutch for the development of the protagonist. "Bird box" in the end is a film that has caught too much of the criticism and of all, but much has forgotten its good narrative structure and some other high points, nothing much, but it is a good movie.