In 1939 Metro-Goldwyn-Mayer released The Wizard of Oz. Towards the end of the film the protagonists finally arrive at their desired location, in order to meet the great Wizard of Oz. Confronted with the ominous presence of the great wizard, Toto the tiny dog casually makes his way over to a concealed curtain in the corner. Next, he slowly pulls aside the curtain, revealing an old erratic man frantically pulling levers, and twisting dials whilst yelling into a microphone. And thus, the Great Wizard of Oz was revealed in his true form, warts and all.