- Errors made by characters (possibly deliberate errors by the filmmakers): Sam says his Great-great-grandfather made his expedition in 1897. However, when Frenzy finds the article about the expedition on Air Force One, the newspaper article had a date of 1895.
- Factual errors: Glenn Morshower's character is referred to in the closing credits as 'SOCCENT Sergeant'. However, when we actually see him (in the film's opening scenes), he is clearly a Colonel: he wears the rank insignia of a Colonel, and is referred to as Colonel by his subordinates.
- Continuity: When Sam is running from Barricade and hits Mikaela who is riding a moped they fall on the ground and the moped is clearly visible laying next to them on the ground. In the next shot they zoom out and the moped is nowhere to be seen.
- Crew or equipment visible: When Sam is running away from his car on the girl's bike and hits the broken sidewalk you can clearly see his double is the one that actually falls over the front of the bike.
- Continuity: When Optimus Prime and Bonecrusher are fighting, they fall from a bridge onto a highway. A car with a mother and child swerves in order to avoid hitting the Transformers, and ends up at an angle, so that in order for the mother and son to see the Transformers they would have to look out of the passenger window. After the cut scene of them swerving to the side, the camera (from inside the vehicle) shows the Transformers fighting right in front of the front windshield.
- Revealing mistakes: In the highway scene, right up until the shot when Bonecrusher tackles Optimus Prime, the road they are on is clearly ground level. In the shot immediately after, they are seen tumbling off an elevated highway road, falling onto a lower elevated road. Then they fell off again and finally reached ground level where they continued fighting.
- Crew or equipment visible: In the scene where Megatron and Optimus Prime fall off the building after Optiums saves Sam, they land in front of a car that's just arriving. The car swerves to the left to avoid them. There's a shot from inside the car while it's doing so. During most of this shot, you can see the cameraman in the passenger seat, filming, reflected in the rear-view mirror.
- Crew or equipment visible: When Sam Witwicky arrives at the party, the camera crane can be briefly seen as a shadow.
- Revealing mistakes: During the first ride that Mikaela takes in Sam's car, both windows are obviously down during their conversation. Yet, neither one has any wind blowing on them. Their hair never moves.
- Errors in geography: In the beginning, during the Qatar scenes, you can see mountains in the background. The country of Qatar has no mountains and the highest elevation is 295 feet above sea level.
- Factual errors: The uniforms worn by Captain Lennox's team have patches on their right shoulders from the 82nd Airborne "All Americans" Division, indicating they served with the 82nd in combat. The "Airborne" tab has been incorrectly replaced with a "Ranger" tab. The "Ranger" tab is worn above the "Airborne" tab on the left shoulder when deployed with the unit and it is not used on the right shoulder.
- Crew or equipment visible: As Ron drives Sam past the Porsche dealership, the reflection of the camera car filming them is briefly visible on the dealership's windows.
- Continuity: When in the air, Air Force One is a 747. On the ground it suddenly becomes a EC-135 which is a Boeing 707. Air Force One was a 707 in the 60s, 70s, and 80s. The EC-135 was used for D.V. airlift and could also be used for in-flight re-fueling.
- Incorrectly regarded as goofs: The film erroneously states that the Laurentian Abyss is the deepest point on Earth; the actual deepest point is the Marianas Trench in the Pacific Ocean. However, considering how they were disposing of highly advanced alien technology, it's reasonable that they would misidentify the location of the dump site to prevent anyone else from obtaining it.
- Revealing mistakes: In the city fight scene, a large piece of a building falls onto the left side of the street, yet when a citizen passes by (and probably accidentally kicks it) the piece appears to move as if it weighed nothing.
- Crew or equipment visible: When they go to the lake party a cameraman is visible in Mikaela's boyfriend's truck's mirror.
- Continuity: After all landlines and cell phones are to be shutdown, people in the background of the fight scene in the city are seen using their cellphones.
- Continuity: Mikaela's nail polish appears and disappears.
- Continuity: When Bumblebee locks in Sam and Mikaela, the locks are seen to lower so that they are almost flush with the top of the door frame. However, in the next shot of Sam, the door lock is sticking up above the door quite a bit.
- Continuity: When Sam leaves his house with the Transformers he is carrying his brown jumper. The scene then changes to him talking with the Transformers and he has his brown jumper on. Then the angle changes, and he has his jumper over his shoulder again.
- Continuity: The amount of donut on Glen's plate while he and Maggie were in the interrogation room keeps changing. After Glen eats the donuts and finishes, only half of a donut remains. But when the FBI agents walk in, it can clearly be seen that there is one and a half donuts on the plate. And when the agent slides the plate to the center of the table, there is only a half donut on the plate again.
- Revealing mistakes: In the scene in Qatar where the scorpion-like robot is attacking the soldiers, there are two main explosions. Closer examination reveals that it is the exact same explosion used twice.
- Continuity: At Hoover Dam when Sam is talking to Simmons about how he wants his car, his parents, and Mikaela's record erased, the giant clock behind Simmons skips about 5-7 minutes in a matter of seconds indicating several takes.
- Factual errors: When the gunship rolls in on Scorponok, the special effects show gunfire coming from the forward part of the gunship. The aircraft shown is an AC-130H Pave Spectre, which has not carried armament in the forward compartments for many years now. Further to that the request was for 105mm howitzer shells, the rate of fire from both weapons is more indicative of the 25mm cannon from an AC-130U interlaced with the occasional 40mm Bofors round.
- Continuity: In the scene where Sam's Camaro is stalking him and he is fleeing on his bike, he ultimately flips his bike and crashes. Soon thereafter you see the black and white Decepticon police cruiser. On the side of the black and white police car, the lettering "POLICE" is in stencil format. In a following scene the stencil lettering is now completely filled-in in gold.
- Crew or equipment visible: During the footage of the Autobots and the Military heading toward the city, the camera vehicle can be glimpsed reflected in the front bumper of Optimus Prime.
- Continuity: After Sam chases Bumblebee to the dumpster area, he is recording himself using his cell phone. When looking closely, it is clear that the cell phone is on the welcome page and not in camera mode.
- Errors made by characters (possibly deliberate errors by the filmmakers): When the F-22 intercepts the helicopter 4500X the audio pronounces the tail number as "forty five hundred x-ray." Aviation standards require most numbers be pronounced individually and should have been pronounced "four five zero zero x-ray."
- Continuity: In the initial fight scenes between Bumblebee and Barricade. There will be a time when Barricade is backed up against the camera (facing away from the camera.) Notice the gap of the wheel well. It's huge! There is no rear right wheel. Director's commentary stated they had some problems with the mustangs.
- Continuity: When driving the tow truck in the final scene, Mikaela dramatically hits a garbage can which disappears when she stops the vehicle.
- Crew or equipment visible: When the Special Forces squad is fighting against the scorpion robot during the second aerial attack with "105 shells" the camera pans across the squad, and the shadow of the camera can be seen.
- Continuity: When Optimus prime Picks up the glasses in the causeway, the glasses are the correct size for wearing by a transformer. When he later uses them to determine the cubes location, it's shrunk back to human size.
- Continuity: During the battle in the city, when Mikaela opens the door of the Mike's Towing tow truck, the phone number is 1-800-555-0199. Later, it has changed to 1-800-555-MIKE.
- Continuity: Day into night - twice during action shots (first at the SOCCENT base, later for Bumblebee's fight with Barricade), the action starts out in broad daylight and, in an implausibly short time, goes to black night.
- Revealing mistakes: When the vehicle with the S7 officers holding Sam and Mikeala is attacked by the Autobots, it is clearly shown more than once that the SUV's gear stalk is in the "park" position. It is most visible when the vehicle's roof is torn off and the SUV lands on the ground.
- Continuity: When Optimus Prime and Bonecrusher are fighting on the multi-level highway junction, as they fall off the bridge, the corner of the support pillar behind them changes from being in shadow to being in sunlight as the shot changes.
- Revealing mistakes: When the Predator flies over the desert to the fight with Scorponok, there is no shadow of it on the sand, a result of the Predator being CGI. A similar issue occurs when Ironhide comes out of the pool and walks directly over the girl with the tooth, meaning the girl should be wet from the pool water dripping over her off of Ironhide. But she isn't, due to the fact Ironhide is CGI as well.
- Revealing mistakes: At the Hoover Dam the water intake tower clock has the 'Arizona' wording digitally removed from the clock image when shown close up. However in a following shot the full 'Arizona Time' wording is visible (although out of focus).
- Factual errors: The battle of "Mission City" involved several F-22s firing which appeared to be Aim-120 (Advanced Medium-Ranged Air-to-Air-Missle) AMRAAM medium ranged active radar homing missiles. These missiles were designed to be used for air to air combat as a replacement to the Aim-7 series of medium ranged air to air missiles. No variant of the Aim-120 series can track or attack ground targets because the weapon is employed with an aircraft's air to air radar.
- Revealing mistakes: When Agent Simmons is asking Sam Witwicky for his help, the Bollé logo on his eye-wear is horizontally flipped in one shot, showing that the shot was taken and then horizontally flipped for the movie.
- Revealing mistakes: Several bits of footage are reused in the movie. When the Decepticons mobilize, the footage of Blackout is the same footage from his approach and landing (notably the pilot in the cockpit at night, which switches to the chopper banking before the F-22 fly by over the desert during the day)I n Quatar, and Barricade driving down the street in the city, passing up the same black Cadillac as he did before he confronts Sam the first time.
- Continuity: After Megatron and Prime fly through the building and land on the street, Megatron throws Prime down onto the crosswalk, hitting a silver parked car, with 4 other cars on the street. In the following scene from the same view, Prime gets up from much further down the street and has to run up to the crosswalk to fire his gun, and only 1 car (a black parked car across the street) is now on the street.
- Continuity: When Prime gets up to fire his gun at Megatron, there is only one car on the street (a black parked car on the opposite side), but after he fires his gun, the camera pans to reveal a parked cab with 2 people cowering behind it right in front of Megatron, which disappears again after Prime is hit and flies back into the window.
- Continuity: After Sam is clotheslined off his mom's pink bike, he gets up and yells at Barricade, who advances on him several times, pushing him back/away from the fallen pink bike, but when the "eye" comes out of the headlight, the pink bike is right beside Sam and the fender of Barricade, despite driving forward several feet when advancing on Sam.
- Boom mic visible: When the camera does a 360 around Bobby Boliva after the windows explode, the boom mike's shadow is clearly visible on his head.
- Factual errors: When Lennox and Gibbons request air support against Scorponok, the controllers at the Pentagon call are said to be using a Predator UAV (Unmanned Aerial Vehicle) to confirm and decide what support should be given. The actual aircraft shown is not the Predator but a different UAV known as the Global Hawk. In either case, a UAV sent on a reconnaissance mission would not fly as low as depicted, but rather at very high altitude to avoid being shot and to take advantage of wide-angle, high-resolution cameras to view a large area of the battlefield.
- Crew or equipment visible: When Bumblebee is speeding along the viaduct, several slivers of yellow light can be seen. As the camera follows Bumblebee, we can see the lighting equipment used to cast the lights in the lower right of the frame and in the background.
- Factual errors: The yellow "1971" Volkswagen Beetle briefly shown in the scene where Sam is picking his first car at the dealership is actually a 1973-1977 model (and in fact a Super Beetle, a different model than the common Beetle).
- Errors in geography: During one scene in Qatar the soldiers pass Shiprock, a natural landmark found in New Mexico.
- Errors made by characters (possibly deliberate errors by the filmmakers): Throughout the film, Qatar is pronounced with the emphasis on the second syllable. DoD employees would know the proper pronunciation stresses the first. CAU-ter is the closest, though English lacks an equivalent to the original Arabic, especially the peninsular dialect.
- Errors in geography: Maggie Madsen leaves the Pentagon and runs south across the intersection of Wisconsin Ave. and "M" St. NW in Washington DC. The Pentagon however is three miles away via various major highways, too far to travel on foot. Had she come from the Pentagon, she'd have taken a different route that precludes her crossing the intersection in that direction, possibly avoiding it entirely (i.e. by taking K St. NW instead).
- Continuity: After Jazz relieves the S7 agents of their weapons, the camera cuts from a frontal view with his right hand full of guns, to a side view, where his hand is suddenly empty.
- Continuity: Just before Bumblebee spills lubricant all over Simmons, he ejects an object that resembles a car engine oil filter, which strikes Simmons by his right eye. Simmons then reaches up and rubs the back right portion of his head, as if the object struck him there instead.
- Factual errors: The Ranger and the Airborne patch are never worn together, as shown on Lennox's fatigues. A person can be Airborne and Ranger QUALIFIED at the same time, but they can never be PART of both at the same time.
- Revealing mistakes: When Bonecrusher splits the bus in half on the highway, you can clearly see that there is no driver in the seat.
- Factual errors: When Captain Lennox and his unit are in route back to the U.S., the SECDEF is overheard calling them "Rangers." Rangers are a Special Operations Unit of the U.S. Army, not the Air Force.
- Factual errors: During the final battle, F-22s are shown carrying missiles on their wings. In actuality, F-22s carry all of their weapons in an internal bay in order to be invisible to Radar.
>>> WARNING: Here Be Spoilers <<<
Goofs below here contain information that may give away important plot points. You may not want to read any further if you've not already seen this title.
- Revealing mistakes: SPOILER: In the fight between Megatron and Optimus Prime, there is a yellow Pontiac GTO shown for a second before it is torn in half. Before its destruction, the GTO's rocker panel is clearly already in two pieces which are not properly attached to the vehicle.
- Continuity: SPOILER: When Bumblebee takes the car over, after Sam picks up Mikaela and parks, she opens the door to go look under the hood. You can clearly see in the foreground of the shot that there's a black mark on the passenger side door/fender. It disappears in the next shot and is never seen again.
- Revealing mistakes: SPOILER: During the chase on the highway, one tourist bus is hit by Bonecrusher and splits in two, revealing that there are no seats.
- Continuity: SPOILER: As Mikaela runs towards Sam before he begins running with the cube she passes Bumblebee on the tow truck. But as she faces Sam you can see the tow truck behind her and Bumblebee is nowhere to be seen. Yet as she runs back to the tow truck Bumblebee reappears.
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