Continuity mistake: After Oz and Theodora have climbed down from the small cave where they hid from their first encounter with a flying baboon and are having a brief conversation, the brim of Theodora's hat alternates from being held up on her right side in the shots from behind her, and being down as it normally is in the shots from in front of her. Presumably this was done to prevent the hat brim from obscuring Oz's face.
Oz the Great and Powerful (2013)
Ending / spoiler
Directed by: Sam Raimi
Starring: James Franco, Rachel Weisz, Michelle Williams, Mila Kunis, Zach Braff
Oscar "Oz" Diggs (James Franco) deceives Theodora (Mila Kunis) and Evanora (Rachel Weisz) into believing that he really is a powerful wizard with a few parlor tricks and the help of Finley (voiced by Zach Braff) and one of the Tinkers. Glinda (Michelle Williams) faces off against Evanora, accidentally shatters the gem that's the source of her power, and Evanora's true form is revealed: an elderly, hideous woman. Both Theodora and Evanora are defeated and they escape Emerald City. Oz gives to his new friends some gifts: a "smile" to Knuck, friendship to Finley, a "family" for China Girl, a tool for fixing things to one of the Tinkers and his love to Glinda. Oz uses the same tricks that he used to defeat the witches in order to maintain the illusion that his "mortal body" has died and that he's a great wizard.
Racer X
Chosen answer: I believe you are taking a very modern-day perspective. In today's era of technology, scientific advancement, and general skepticism about everything, we are pretty jaded and cynical about things like magic and paranormal phenomena. At that time and place, audiences were far more willing to accept the possibility of true magic and sorcery, and weren't as prone to disbelieving what their eyes told them. A "con" (short for "confidence") man is one who attempts to gain the trust of another, subsequently using deception, fraud, and/or trickery for their own personal gain. I don't think it's unfair to label Oz this way, particularly at the beginning of the film.
Michael Albert