Continuity mistake: After he discovers the beacon for Drone 172 was a trap, Jack takes off and leaps back over the gap he came from moments before. The camera angle behind him as he is about to hit the other side shows his arms down as he is bracing for the impact. But it cuts to in front of him and instantly Jack's arms are up in the air. He is not moving them up as the shot cuts.
Continuity mistake: The first time we see Julia's stasis pod number is through the gun scope and back at the tower shortly afterwards, and it is numbered 06. But in the flashback late in the movie after he says "dream of us" to her before launching that module, the pull back shows him leaving pod 04 (we can't really see the number, but the other pod numbers from left to right are 05 and 06 as he leaves that module, so 06 definitely isn't launched).
Factual error: When Jack retreats to the cabin for the first time in the film, he puts a Led Zeppelin record - Led Zeppelin II - and plays the first song on that side of the record, which turns out to be 'Ramble On'. Any Zeppelin fan would know that 'Ramble On' is song number 7 on side B, therefore the needle should have been placed somewhere in the middle of the disc. The first song on that side of the album would be Heartbreaker.
xx:xx:xxAllister Cooper, 2011
Continuity mistake: As Jack attempts to escape the abandoned library, he attaches himself to the cable which sends him shooting up. The cable snaps off and Jack falls back into the library. As this happens, there is a rope attached to his gun. But the rope vanishes by the time it falls into the pit a few seconds later.
Revealing mistake: When Jack says "Screw you" to Sergeant Sykes, Sykes pulls his pistol and shoots Jack. You see the gun flash, and you see an impact on Jack. But if you watch closely, they do not line up. The special effects charge goes off indicating the hit on Jack's right breast. But when the gun goes off, while still moving, at that moment it was pointing at Jack's lower left abdominal region.
Continuity mistake: Just after Drone 109 disconnects itself from the garage, the scene cuts back to Julia watching Jack and Victoria's argument. In the first shot, she is standing next to the ship with her shoulder partially behind the ship door and her head resting on the door frame. But in the next shot, we can see Julia to the left of screen with her shoulder now out of the ship's door and her head no longer resting on the door frame, standing a few inches further away from the door.
Continuity mistake: Just after Jack reads the quote from the Lays of Ancient Rome book, Victoria walks half way down the staircase and says "Jack." During this shot, Victoria is visible to the left of screen with her right hand placed on the banister and the rest of her arm bent downwards in a 6 o'clock direction. Yet in an instant close-up of Victoria, her right arm is now stretched in a 9 o'clock direction.
Audio problem: The scene after Victoria drops the plant from Tech 49 and lets it fall onto the Earth, shows the two of them having supper. The first line said in this scene is Victoria saying "Every day you have to go down there... And see what was lost." Victoria's lips don't move an inch when she says "and see what was lost."
Continuity mistake: When Jack is riding his motorbike past the deserted ships, there is a huge trail made on the ground. This trail continues to be made as he rides. But as soon as he drives over a hill and stops his bike, there is no visible trail in the background, only the ships are visible.