Continuity mistake: When Sam 2 places Sam 1's helmet on his head before placing him back into the damaged rover, the faceplate is still blood-spattered and dirt-smeared, obscuring Sam 1's face. However, when Sam 1 is settled into the seat in the rover, the faceplate is very clean and his face is visible.
Continuity mistake: In the scene where Sam crashes in the vehicle, a drip of blood appears just below his right eye (the viewer's left). However, in the next shot, the drip moves to his left.
Continuity mistake: When Sam B knocks the models over and they start fighting, Sam A is knocked to the floor. As he's trying to get up you can see a cut and quite a bit of blood on the top of his right hand because his bandage is gone. A second later, as he's standing up, the bandage is back. (00:47:00)
Continuity mistake: During the opening credits, as Sam Rockwell enters the rover there is a piece of equipment placed next to the hatch. It is not taken inside by Sam, as the next shot shows him climbing down empty handed. The apparatus however mysteriously disappears in the next shot of Sam closing the hatch.
