¿Book or film?

A book and a film can tell us the same story but in a very different way. First of all, both are a good way to spend your spare time. With a book, you usually spend a few days whereas with a film you spend a few hours. Moreover, with a book you get more detailed information, the film just show you the story in broad strokes, reading a book you can know a character and how he thinks better. In addition, reading is a very good hobby, it is very good for you because it helps to train your brain, it also reduces the risks of suffer alzheimer, besides, it helps you to imprve your concentration and it reduces stress. Likewise, reading is a cheap entertainment, going to the cinema can be very expensive. In contrast, you can watch a film with friends but normally you read alone. But, you can read a book wherever you want not the same as a film, where you need a cinema, a TV or a computer.
When you have read a book and then you go to watch the film, you always think 'I prefer the book, the film is not like I imagined it.'