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Visible crew/equipment: In the first overhead shot of the Autobots entering Chicago, you can see a small black camera cart in front of Bumblebee and Mirage. (01:47:45)

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Continuity mistake: When Optimus takes a dive after his rampage in front of Shockwave, you can see that it is actually in front of the building with the control pillar in it (note the very distinct clock in the background) yet when Optimus shoots the dome and the pillar down, he's a good distance away from it.

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Continuity mistake: When they all slide down the building, we get a shot that pans up. In this shot, Sam is the one closest to the bottom of the building and Carly is one of the people on the very top. Yet in the next shot, Sam catches up with Carly. (01:55:45)

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Continuity mistake: Sideswipe's rims keep changing throughout the movie. At some point he has rims which have a pretty big distance between the edge and the actual spokes and at other points he has rims which have the spokes on the edge of the wheels all together.

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Continuity mistake: When The Xantium leaves earth, it leaves a massive trail of smoke. When Sam calls Dylan, the smoke is gone only to reappear after Starscream blew the Xantium up.

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Revealing mistake: When Optimus has his 'rage' on Wacker Drive, you can see that cars that are being flipped not entirely by volition, since some of them (most notably the red BMW before he cuts a Decepticon clean in half) aren't even touched by Optimus or any Decepticons. (02:15:15)

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Factual error: Cybertron is placed between Earth and the Sun, as you can see in the shots from outer space. But it doesn't see to block the sunlight, despite being notably bigger than the Earth. It may be a framework but it's very dense with multiple layers.

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Continuity mistake: After Ironhide crashes into the remaining Dreads, we see that Crowbar lands on a bus stop, but when Sideswipe arrives, he is in front of an open garage door, at least 10 ft. away from the bus stop, debris is nowhere to be seen. (01:09:00)

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Continuity mistake: When NEST is tracking The Dreads, in the satellite shot there is hardly any traffic on the freeway. However, in the shot immediately afterwards, it's very busy.

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Continuity mistake: Before Shaw takes the grenade from Hendry, the latter one has his finger in the pin, and has it half pulled out by then. Look closely at Hendry's hand: he is still holding the pin, while Shaw takes the rest of the grenade, but in the next shot, Shaw pulls it out again. (00:28:10)

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Trivia: When Megatron flies in on Sam, he throws away a silver Mercedes-jeep. Take a close look at the numberplate of the car (slow motion and/or pause definetly required, but allowed for trivia) it reads "Energon", the substance that powers Transformers. (02:02:00)

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Other mistake: When Optimus picks up the glasses from the edge of the river, his hands are really out of size: the glasses are nearly as big as his thumb, while minutes before, they were big enough to hold two teenagers. (01:29:15)

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Revealing mistake: When Elizabeth gets out of the water on the little island, you can see a modern day bra through her dress. (01:31:25)

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Continuity mistake: When the mini-gun starts shooting at Dom on the bridge, at first we get a shot of a line of bullets hitting the door. In the next shot, the door is fine and the first barrage of bullets hit the bonnet. (01:47:45)

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Audio problem: When Hobbs gets out of his "four wheeled tank", he readies his M4 and there is a sound of him cocking it. However, his free hand is nowhere near either the M4 itself, or the underbarrel shotgun. (01:29:50)

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Continuity mistake: When Tran and Lance open fire on Brian in the case, Brian passes the same red/brown car with the white hood twice. (01:32:45)

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Continuity mistake: When Dom crushes Phoenix between the Camaro and Impreza, the hood of the Camaro is badly damaged and denting up. In every shot afterwards, the Camaro is just fine. (01:35:50)

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Revealing mistake: When Optimus returns from the dead, he says: "We will kill them all.". The same footage is used when he makes his speech with: "your leaders will now understand", only it's cut slightly shorter.

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Continuity mistake: When Optimus takes the roll to avoid getting shot by Shockwave, you can see the very distinct clock of the Hotchkiss building can be seen in the background, yet they aren't fighting in front of that. In the next shots, the building in front of which Optimus rips out Shockwave's eye is much more modern.

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Continuity mistake: Just before Optimus Prime arrives in the street where he kills ten Decepticons in twenty seconds, there is a shot of Sentinel saying "It's our world now!", and he is looking out over that same street. When Sam comes out of cover to take a look at Cybertron, Sentinel is still on the building. But when Sam shouts "Optimus!" Sentinel is gone.

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