Saruman than in their equivalent books, and he appears in several scenes that are not depicted in Tolkien's work. In the films, Saruman is depicted presenting himself outright as a servant of Sauron. Smith and Matthews suggest that Saruman's role is built up as a substitute for Sauron—the story's main antagonist—who never appears directly in the book. Jackson confirms this view in the commentary to the DVD. They also suggest that having secured veteran British horror actor Christopher Lee to play Saruman, it made sense to make greater use of his star status. Despite this increased role in the first two
Saruman Lord of the Rings" tends to be associated with machinery, whereas good is usually associated with nature. Both Saruman's stronghold of Isengard and his altered Shire demonstrate the negative effects of industrialization and Isengard is overthrown when the forests, in the shape of the Ents, literally rise against it. Patrick Curry says Tolkien is "hostile to industrialism", linking this to the widespread urban development that took place in the West Midlands where Tolkien grew up in the first decades of the 20th century. He identifies Saruman as one of the key examples given in the book of the evil effects