Continuity mistake: This is right after Conner jumps down to the lower level to get to the grenade launcher and hurts his shoulder. He is crawling away from the T-800 and the shot is from right behind Conner's head. The T-800 is practically right on top of John, but when he shoots the oven and the molten steel lands on the T-800, the shot shows John like 30 feet away.
Other mistake: When Marcus, Kyle and Star are at the petrol station, a flying HK and the giant Harvester robot are able to appear just outside without making any kind of sound. In every other scene of the Harvester and the HKs however, they both make an incredible amount of noise.
Continuity mistake: In the scene where Blair escapes with Marcus and Barnes launches an explosive into the tunnel, Marcus hops onto Blair to save her from the scorching flames. After the fire, Marcus' coat would have been burnt to a crisp, his hair singed off and the skin on his back fried. More evidence pointing to this was that his coat was merely one previously worn by a Resistance fighter, not special in any way, and he has regular skin and hair.
Continuity mistake: When Marcus was freed by Blair and they are trying to escape through the shaft, Barnes shoots a rocket at them. Marcus lies on top of Blair as the fire goes through the shaft, but you can see that Blair's hair is sticking out from under Marcus. When they get up, Blair's hair is not burnt at all.
Continuity mistake: When Marcus is driving the big tow truck down the highway, he smashes into the back of a red VW Jetta with custom chrome wheels that is parked on the right side of the road. A few shots later, the same car is shown again, now on the left side of the road, and is hit again. That's fair enough, as the truck seemed to reverse direction when the first bike crashed into the bus. But seconds after the second hit, this car is again on the RIGHT side of the road, and is struck a third time (this is actually the first hit, shown now from a different angle).
Revealing mistake: After Marcus rips out his chip implant, he picks up a steel stool and throws it through the screen. The stool stops in midair as soon as it breaks the screen, which is a mistake in itself. The stool does so because there are wires connected to the stool, at least one of which is visible: a microfilament wire from which the stool is suspended. It is attached to the the stool at the pole between the upper and lower plates. The displays on the other computer monitors in the background appear to have been meant to help disguise this, but one line in particular moves in perfect sync with the stool. Also, the wire snaps taut, then wiggles with slack, whereas the lines on the monitors remain completely straight at all times. A previous correction claims that no wire is visible, but that is completely erroneous.
Continuity mistake: When the Resistance has a Hydrobot on the table testing out the jamming shut down signal, they have recycled footage when editing the film together. When they strap the Hydrobot down to the table, the shot changes to a close frontal shot of the Hydrobot and the straps have gone. The shot then pans out to a more distant perspective and the straps re-appear. The shot goes close up and the straps vanish again
Continuity mistake: When the Saab 900 car is destroyed by the Harvester, it already has momentum and you can see whats left of the car thrown in an arc into the air. When it lands however, it simply drops vertically, which it wouldn't do, it should have fallen in a decreasing arc.
Continuity mistake: John Connor, whilst battling the T-800, fires a shot into a wall to create an opening. Star jumps through the hole to the left, Kyle jumps to the right, and John jumps through the centre, yet in the next shot Kyle has landed in the centre and John has landed on the right.
Continuity mistake: When Marcus and Kyle are being chased by Moto-Terminators, Kyle kicks the oil barrel off the truck to hit one of the Moto-Terminators. Later, as Kyle reaches rearward to release the tow hook, the barrel is shown still on the truck, standing as it was before Kyle kicked it off.
Continuity mistake: When the Harvester destroys the Saab sedan that is fleeing the fuel station, the car's chassis is shown sailing through the air, stripped of its interior and drivetrain, throwing random sparks, but not on fire in any way because there's really nothing left that would burn. But moments later, it is completely engulfed in flames as it crashes through the awning over the gas pumps.
Continuity mistake: When Kyle and Star are fleeing from the gas station, being chased by the motorcycle Terminator, the wrecking ball on the truck is swinging wildly. In the next shot it's firmly hooked to the left side of the truck and then in the next shot Kyle is told to release the ball and it's loose again.
Continuity mistake: This is near the end of the tow truck chase scene. Just when the truck hits the railing and Kyle and Star are thrown from the truck, Kyle is caught in the right hand, Star is caught in the left hand. But when the shot is coming from inside the transporter, Kyle is dropped from the left hand and Star is dropped from the right hand.
Continuity mistake: While John Connor is above the small lake in a helicopter searching for Marcus, he and his crew are attacked by snake-like robotic arms that rise up from the water. The arms partially penetrate the cockpit but in brief, subsequent shots of chopper, the arms, which should be extending from the exterior, are nowhere to be seen.
Factual error: In the scene in the 'cattle car' the shadow and light from outside the bars is moving across Kyle's face as he is talking. But unless the light source moves relative to the shadow source, a shadow will not move. But the light source was just outside daylight - and not direct sunlight - so the shadow inside would not have moved.
Continuity mistake: Just after Marcus rips out his chip and throws the stool, he jumps to the lower level. As he walks up to the resistance soldier on the MRI table, if you look at the top edge of the screen, you can see that the awning is all damaged from being shot by the terminator that Kyle stabs in the neck. However, the scene where this occurs happens about a minute after Marcus jumps to the lower level.
Continuity mistake: During the tow truck chase scene, Marcus basically bangs a U-turn and the one bike hits the bus. As they go under the overpass, it has a shot from directly above the truck showing Kyle on the bed right at the center of the cab's rear window. Then the very next shot has Kyle at the passenger door and he asks "where's the other one?" But then the shot moves to a ground level shot looking up as the bike jumps over the truck and Kyle is now standing back on the bed, not at the passenger door.
Continuity mistake: As the tow truck flees the fuel station after believing the Harvester has been destroyed, a car explodes just ahead of the truck in the right lane. The shot immediately following this has Reese facing the camera looking back at the Harvester, but ahead of the truck we can see the road and the exploding car and all the smoke, fire, and debris have all vanished and the lane is clear, even though they can't have passed this car yet.
Continuity mistake: When Marcus stops the Jeep at a ruined fuel station, he parks it between the two gas-pump islands. The Harvester blows the Jeep up and its remnants rain down back on the spot where the Jeep stood: between the islands. We can clearly see the Jeep's grille fall to this exact spot. Marcus and the others are thrown against the wall of the building when this occurs. As Reese crawls to Marcus, he does so across the Jeep's grille, which is now 30 feet or more from where it actually landed.
Continuity mistake: When Marcus hits the side of the compartment that contains Kyle and Star with an axe for the second time, we see the panel's left edge separate from the vertical column, bent in a large "V" inward into the compartment. The next exterior shot as Marcus is grabbed by the harvester shows the panel has only the one small hole in it that Marcus created with his first axe strike. The damage from the second hit is gone.
Continuity mistake: Once the tow truck is attached by cable to the HK, it is spun around. As the truck's rear end is approaching the Honda Element, we can see Kyle making his way into the cab for protection. But a quick external shot of the rear of the tow truck shows Kyle is behind the cab, holding onto the exhaust stack. Then a high shot showing the Honda get hit shows Kyle is gone, apparently safe inside the cab.
Continuity mistake: At the end of the tow truck chase, an HK appears overhead, turns and fires at a completely empty portion of the bridge's road surface (tho Honda Element is between the truck and explosion in the left lane). Yet when we see it from within the truck, the explosion is shown to be of a car of some kind.and the Honda has vanished. Then, as the truck spins-out and comes to a stop, the external view shows that Honda is back and undamaged.
Continuity mistake: As the tow trucks crosses the bridge at the end of the chase, it passes three cars (one is overturned) to the truck's right that will act as a ramp for the bike in a moment. Then, as the truck spins to a stop, a shot from beneath the truck looking rearward shows the three cars it has already passed are not there behind it. Yet the very next distant shot shows the cars are back in place in time to send the bike into the air.
Other mistake: The T-800 manufacturing facility cannot seem to decide just how the T-800's are assembled. When John, Kyle and Star jump through the hole and land amongst a load of T-800 skulls, all of the skulls have eyes that are lit up, and the lower jaws already attached. However, in the next shot when we see the T-800's being assembled on the production line, eyes are inserted separately and are not lit up, and the the lower jaws are only attached at that point, not before.
Continuity mistake: When the truck rams a silver wagon that is blocking its path, a dark-color 1970s Firebird is parked nose-to-nose with the wagon, at the roadside, and just beyond the Firebird, a silver 1990s minivan is parked on the same side of the road. When the shot changes to show the moto-terminator analyzing the airborne wagon, the Firebird and minivan are gone, replaced by a silver modern sedan. Then, as the wagon crashes to ground after the bike passes under it, nothing is parked on that side of the road except a 1970s Cadillac sedan which is further back along their path of travel.
Visible crew/equipment: During the Harvester attack on the petrol station, the Harvester uses its cannon on a fleeing car, blowing it up into the air. During the shot of the remains of the car spinning through the air, the cylinder of the special effects cannon used to fire the car into the air is visible protruding from the centre of the vehicle.