Continuity mistake: When the news crew is interviewing Sam's parents during the credits, the way Ron holds Mojo changes. (02:15:10)
Continuity mistake: When Sam and Mikaela handcuff all the agents, Sam is wearing a black short-sleeved tee shirt atop a blue long-sleeved tee, before putting on the hoodie. We see the dark tee sticking out when he and Mikaela climb onto Prime. Then moments later, Sam is wearing ONLY a long white short-sleeved (we see it has short sleeves when Bumblebee gives him the All Spark later, through a tear in the hoodie sleeve) tee shirt under his hoodie, when he falls from Prime, when he witnesses Bumblebee's capture and thereafter. (Earlier, after he knocks Mikaela off the moped, from that point on there is a very large hole at the back of his blue and black tees, where we see his skin under the jagged material edges, with no white material seen anywhere. We also see no sign of a long white undershirt at any time when Sam's dark tees go up, during his many action shots.)
Continuity mistake: When Banachek shows Secretary Kellar the photo of Blackout from Qatar, the photo is a photo taken of the transformer in the Beagle 2 video. It's not the photo Epps took of Blackout. You can tell because Blackout has a box-shaped body and the transformer in the photo has a slender body.
Continuity mistake: When Mikela hotwires the tow truck, it has an automatic gearshift. Later, when she is driving and Bumblebee is shooting, look closely, it's now a manual transmission.
Continuity mistake: In the junkyard when Bumblebee is trying to get away form the "cop", after Bumblebee locks the doors with Sam and Mikaela inside, the windows continually change from being up and down.
Continuity mistake: When Sam and his parents are being arrested by the Sector 7 officers, inside the house Sam is wearing a blue Strokes t-shirt over a long sleeved shirt. When the shot changes and Sam and his parents are being led in hand cuffs to the police cars, a brown sweatshirt is tucked between Sam's left arm and his back due to the handcuffs. In the next shot, Sam is wearing the brown sweatshirt as he says a line of dialogue. The camera cuts to Agent Simmons of Sector 7, then goes back to Sam, who is now wearing the Strokes shirt and the brown sweatshirt is draped over his left shoulder.
Continuity mistake: In this movie, we see a close up shot of Mikaela's hands in three separate scenes. The first is a shot from behind Mikaela and Sam where they grasp hands and the camera closes in on that. You see Mikaela's short nails, with chipped red polish. The second time we see her hands is a shot where she covers her open mouth with both of her hands in shock. Her nails are unpolished. Finally, the third time is during the ending sequence where both she and Sam have been thrown to the ground near each other. Mikaela stretches her hand toward him, they touch fingertips, and the red nail polish is back.
Continuity mistake: In the battle scene with Frenzy in the dam, Agent Simmons uses a flamethrower to push Frenzy away a good distance from the door but in the next shot Frenzy is already halfway through the door.
Continuity mistake: When Bumblebee is captured by Sector Seven, the camera goes back to Optimus Prime talking to Mikaela and Sam. If you look at her hair, it is loose and flowing. In the next shots when Sector Seven capture them, Mikaela's hair is tied up at the back, she had no time to tie it up.
Continuity mistake: Mikaela gets a tow truck to move Bumblebee after he lost his legs. At first, the writing on the left door says 'Mike's Towing - 800-555-0199.' When she gets out to hoist Bumblebee up, the writing on the same door has changed to 'Mike's Towing - 800-555-MIKE'.
Continuity mistake: In the beginning of the scene where the Decepticon is on Air force One they show a 747 but when they land and they show the Decepticon sneaking off the plane the Air Force One shown is a KC-135. Although you don't see the whole plane, the engines are that of a KC-135, long and slender versus big and round like a 747. Also, you can see the refueling boom, which a 747 does not have.
Continuity mistake: When we hear Sam's recording on his phone, it sounds nothing like what he actually recorded.
Continuity mistake: In the city, after Ironhide flips over the missiles that Devastator shot at him, he can be seen falling very close to the ground, but in the next shot, he is much higher up so that he can then shoot himself back up-right.
Continuity mistake: When we hear the Qatar base commander say: "4500X, something's not right," we see the sun has already set (the sky is purple) but when everyone starts to mobilize, the sun is still visible above the horizon.
Continuity mistake: When Bumblebee is caught and then frozen, you can tell that he isn't animated and is rather an enormous prop, because he is a lot cleaner than his animated counter-part.
Continuity mistake: In the scene in the interrogation room with the two programmers there is a big plate of doughnuts which the hacker eats very quickly. But take a look at the plate between shots when he's talking and you'll see that the amount of doughnut left on the plate varies greatly: Sometimes there's one whole doughnut left, other times, in the same conversation, there's only crumbs.
Continuity mistake: When Captain Lennox's wife is watching the broadcast saying that everyone at Qatar was killed, the door is wide open. When she sits down to feed her baby, the door is now closed and the high chair has been moved accordingly.
Continuity mistake: When Banacheck shows Sen. Kelly comparative photos of Blackout with the one from the beagle probe and Epp's photo, the latter one shows the sun behind Blackout although it was taken at night.
Continuity mistake: During the chase scene, where Bonecrusher and Barricade are chasing the Autobots on the highway, Bonecrusher transforms into robot mode and is shown skating across a 6 lane highway. Optimus Prime is shown to transform into his robot form to fight Bonecrusher. You can see the 6 lane highway in front of Prime stretch on as far as the eye can see, and there are no ramps or overpasses anywhere in sight. Yet at the moment of impact, when Bonecrusher tackles Prime, they are suddenly on a highway overpass, which they fall off of, and fall onto ANOTHER highway overpass.
Continuity mistake: At the beginning of the movie, during Blackout's inbound flight, Blackout is ten miles out. When the two F-22s take off, the angle between the planes and their shadows on the ground is around 60°. This puts the sun somewhere in the middle of the day. Yet, when Blackout lands at the base it's just after sunset.
Answer: Primus created the original Thirteen Transformers, later known as the Thirteen Primes, to help him defeat his nemesis, Unicron. The Thirteen Primes were the start of the Cybertronian race, which eventually turned on itself when Megatron, formerly Megatronus, started the War and his Decepticon faction.