Reading or watching movies to learn English

I often hear people say that they like watching movies and TV programs to learn English. I have always maintained that repetitive reading and listening is more useful for language improvement. The reason is simple. In watching movies you have lots of clues as to what is going on. The dialogue is not so concentrated unless you are watching a very intellectual movie.

When reading, or listening to an audio book, you are completely dependent on the language. The intensity of the learning experience is much greater. It is easier to repeat your reading and listening and it is easier to do, whenever and wherever you want.