Check out the article written by Susan Stamberg "Long Before Computers, How Movies Made Us Believe"at npr.org.You can also listen to the story on NPR , the morning edition . The story is about how films such as "Dr. Zhivago", were based on the artist's sketch for set design , without the aid of computers. Many of today's blockbuster films are reliant on computer generated imagery, such as "Avatar" and "Lord of the Rings". Movie magic that predates the digital age were done entirely by human hands. The book "Designs on Film: A Century of Hollywood Art Direction", by Cathy Whitlock shows the sketches of sets, and scenes from movies long before computer aided imagery.