I learned how native speakers talk. In class, I can see a lot of movies I would never see in my life. I learned a lot from oral communication, but I can't repeat their words. I desire to learn the way they speak. The real life situations of conversation really helped at lot.
Movies are more vivid than news programs.
Also the culture stuff is important. I learned American lifestyle from watching the movies. Culture part is the most useful. To understand American culture more, and to enjoy. By explaining the cultural background of the movie, you make me understand more.