Goofs

After Greer gets beaten up up by the Prophet's guards, his scars keep moving and changing severity for the rest of the movie.

After Greer crashes his own car into the boutique and escapes down an alley. He see's a man in a gray suit get out of his own car and walk to the front of the car. Greer then jumps in the drivers seat and as he drives off, you see the original driver, but now he is wearing a black suit and is now running back from behind the car, where previously he was in front of it, shouting at Greer.

In the climactic scene where all the surrogates collapse, you can see one of them (a woman in purple) put their arms out to brace themselves for the fall.

The car which Peters crashed and is used by Greer to chase her, has no visible damage in 2 of the following scenes. One of these scenes is after Greer crashes into the store. The FBI agent opens the driver's door and we briefly see some cracks in the passenger window, no other damage to that door.

When Tom Greer is talking to Lionel Canter's young man surrogate in the back of the limo, the surrogate's hair changes dramatically within seconds. Tom Greer looks away for a second and when he looks back the surrogate's hair changes from in place and shorter to longer, shaggy and in his eyes.

None of the cars that crash, certainly the one Greer smashes into a building, seem to have any air bags that deploy.

When the FBI agents investigate the damaged army surrogates, they visit with Colonel Brendon, who is seen wearing a Ranger tab on the right shoulder of his Class A uniform. Special skill qualification tabs are worn on the left shoulder only, not the right.

When Agent Greer meets Col. Brendon in his office, Col. Brendon is wearing the U.S. Army "Class B" uniform (shirt & tie, without the Class A jacket). His Class B shirt should have, as a minimum, a name tag and rank insignia shoulder boards. While U.S. Army uniform regulations could change in the future, it's unlikely that they would change to where you would be unable to identify the soldier's name and rank, especially since his ACU fatigues and Class A uniform are identical to 2009-era U.S. Army uniforms.

When Greer is sitting in the subway riding to work, he checks his watch, ostensibly to see what time it is. Robots that sophisticated would likely have internal chronometers and would always know the exact time down to the tenth of a second.

Many of the soldiers in the film are wearing the Army Combat Uniform (the digital gray fatigues) turtleneck style. The ACU is only worn with the collar up under body armor, to keep the armor's ballistic throat guard from chafing a soldier's neck. When worn by itself, the ACU's collar is folded down, resembling an open collar shirt with lapels.

When a young man is killed at UC San Diego, his body is loaded into an ambulance. By California state law, it is Coroner's Office vehicles, not ambulances, who carry corpses. However, the movie is set in the future when that may have changed.

When the record of Strickland is shown to the camera, the word "Verified" is correctly written on the left side but is mistyped as "Verfied" four times at the right.

When Peters is being chased by the car and jumps off the phone booth to the building and back to the street, the actress is wearing high-heeled pumps, but the stunt-woman is obviously wearing athletic flats. This is seen again when she jumps onto the bus.

Maggie's hands in the final sequence read too young. They are the hands of a younger woman.

When Greer and Peters look at the destroyed surrogates, the cop tells them they should go talk to the owners. The next shot is an over head of the Zakim Bridge, but the angle shows the TD Bank Garden on the right side implying they are headed south on the bridge. The Zakim is located north of Fort Point Channel, thus, you wouldn't ever travel southbound if you're leaving Fort Point Channel. The Channel is a body of water that borders South Boston.

Clearly visible in one of the office scenes.