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Revealing mistake: As they exit the Tin Man's scene singing, "We're off to see the Wizard", a bird stretching its wings is casting a shadow on the painted sound stage wall slightly to the right of the house, which reveals it to be a fake backdrop instead of an open area. (00:47:45)

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Revealing mistake: When Dorothy runs to the back of the house during the storm a crewmember is moving the rocking chair in the room on the left. The wind never stops blowing, but the chair stops moving after it's left alone. (00:16:35)

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Revealing mistake: The candles on the chandelier that fall on the guards are not real. If you look closely at them they're operated with gas. (01:24:50)

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Revealing mistake: The Scarecrow tells Dorothy to, "just bend the nail down in the back and maybe I'll slip off" but what she actually does is pull a lever. (00:35:40)

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Revealing mistake: After the Wicked Witch throws fire down at them the Scarecrow kicks the stump next to him and it moves several times. The one behind him also moves. (00:46:25)

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Revealing mistake: The Wicked Witch throws her hour glass at them and it's guided down to the floor by a wire. If you look closely before it hits the floor sparks start up around it and after it hits it doesn't move or roll, but just sits there. (01:24:45)

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Revealing mistake: The glass in Dorothy's bedroom windows don't break, they are removed from their frames as the scene progresses, and if you look at the reflections in them the windows are made of plastic. (00:18:45)

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Revealing mistake: As the Wicked Witch throws the hour glass down at them the stone statue on the left of the monkey is shaking. (01:24:45)

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Revealing mistake: As the Tin Man holds on to the Lion's tail, the seam in the painted backdrop behind them is very visible going from left to right across the entire sky. (01:20:05)

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Revealing mistake: After he bangs on the second floor church window, Elaine screams his name and Benjamin runs down the steps to the main floor of the church. Mr. Robinson meets him halfway down as they fight and if you look closely Benjamin's white windbreaker was made to just fall apart as Mr. Robinson tugs on it. (01:43:00)

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Revealing mistake: The wires can be seen behind the Tin Man as he is lifted up in the Haunted Forest. (01:13:55)

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Revealing mistake: Dorothy's bedroom window flies open and the wires pulling it can be seen glistening on the middle right of the screen. (00:17:00)

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Revealing mistake: Jeff Trent, Col. Edwards and Lt. Harper grab some guns and take a walk in the graveyard, and a prop tree almost falls over as Col. Edwards walks by and brushes up against it with his shoulder. (00:57:30)

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Revealing mistake: After Tor Johnson drops Paula the police officer comes over to try to wake her. The carpet that's supposed to be the ground crumples under his feet. (01:13:25)

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Revealing mistake: Inside the alien spacecraft a battery operated blinking traffic caution signal is used as a prop from another world. (01:04:50)

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Revealing mistake: As Tor Johnson holds Paula, the police officer comes up from behind and clobbers him on the head with a wooden stick. He falls to the ground and the entire set including all the trees, shake like they were just in a magnitude 7 earthquake. (01:13:20)

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Revealing mistake: In Art Huck's living room before Pat Clark throws water into Marlowe's face, Lauren Bacall's eyes are closed in anticipation of being splattered (1945 Version on DVD). (01:41:30)

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Revealing mistake: As the saucer flies over the graveyard, Tor Johnson's shadow can be seen on the studio wall behind him. (00:13:20)

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Revealing mistake: The woman at the graveyard lets out a scream as she sees the dead bodies. It's obvious that the bodies are dressed up store mannequins. (00:08:40)

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Revealing mistake: At his house, Marlowe finds Geiger's two day old dead body in a back room and if you look closely the body is breathing. (00:59:35)

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