The Wizard of Oz (1939 film)
Plot
Upon their return to the Emerald City, the Wizard stalls in fulfilling his promises until Toto pulls back a curtain and exposes the "Wizard" as a middle-aged man operating machinery and speaking into a microphone. Admitting to being a humbug, he insists that he is "a good man but a bad wizard." The Wizard then gives the Scarecrow a diploma, the Lion a medal and the Tin Man a ticking heart-shaped watch, helping them see that the attributes they sought were already within them. He then offers to take Dorothy and Toto home in his hot air balloon, revealing that he is also from Kansas and was originally a carnival worker before a tornado brought him to the Emerald City, whereupon he accepted the job as Wizard due to hard times.
The Wizard of Oz (1939 film)-8