Making a film takes a long time and is a very hard work. Writing the story for the film may take many weeks. Filming the story being acted or shooting the film, as it is called, often takes at least six months. Actors and cameramen work from very early in the morning until late at night. Each scene has to be acted and reacted, filmed and re-filmed, until it is just right. Sometimes the same scene may have to be acted twenty or thirty times. The film studio is like a large factory, and the indoor stages are very big indeed. Scenery of all kinds is made in the studio: churches, houses, castles, and forests are all built of wood and by actors and actresses. The director of the film, however, is the most important person. In a film studio, he decides how the scene should be filmed and how the scene should be arranged. Most people go to see a film because they know the film stars in it. Sometimes the film may be very poor. It is best to choose a film made by a good director. Some famous directors make their films very real. People feel that they themselves are among the people in the film.