The narrative of the film along with the performances and the sequence itself makes it a work of great value.
The story is quite simple but it works. It's a horrific comedy, sometimes you jump and sometimes you laugh. The four main characters all have very different personalities, which makes them complementary. Furthermore, the flashbacks of the heroes' lives in the film allow them to be discovered before the zombie apocalypse and to take interest in themselves. The narrative and the different rules of survival explained by Columbus bring a second degree to the story. Nevertheless, it does not fall into the excess of violence, it is mainly focused on humour.
The only negative review I can make about Zombieland is that it is a bit too short, it only takes an hour and twenty minutes. Some moments in the story could have been developed further and it would have brought a greater depth to the film.
In general, I loved this kind of film which I find very funny. It is ideal for relaxing and laughing. You can watch it several times without get tired of it.