Continuity mistake: When the Doctor is shot and killed while trying to regenerate on the beach, he falls with both legs extended. When River, Amy and Rory run up to him his left leg is bent. The camera cuts away again, and when it cuts back to show the Doctor's body one more time both legs are straight again. In addition, his left arm changes position between shots, between stretched out pointing away from his body on close-ups to bent with his hand resting on his thigh in wider shots.
Continuity mistake: As Lucy goes down the hall, she opens door 214, then 215. As she comes to the next door on the right, she opens 214 again, rather than it being 216. This is particularly noticeable because the third room she enters is "her" room, containing her greatest fear - and the first room she went into numbered 214 had a completely different fear.
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Character mistake: Idris (the human form of the TARDIS) berates the Doctor because the doors of the TARDIS open inwards, pointing to the notice on the left hand door which says 'pull to open'. Whilst it is true that police boxes did open outwards, the notice is actually referring to the telephone in the small recess behind the notice. The public are instructed to 'pull to open' the small door to access the phone. Consequently, the small door does open correctly, as in the notice.
Add timeJeff Walker
Continuity mistake: When the Doctor compares Amy's inaccurate drawing of Rory to the real deal and laughs, in a shot facing Rory the Doctor is shown lowering the picture, than in the next shot facing the Doctor he still has the picture raised. In addition, his grip on the paper changes from holding the bottom of the page to the side.
Revealing mistake: Several of the hallways in Demon's Run, particularly the one where Madame Kovarian has the baby brought to her and the one the Doctor's standing in when he realises where Amy and Rory's baby was conceived, are the repainted sets of the TARDIS hallways from "The Doctor's Wife", three episodes before.
Continuity mistake: When the TARDIS crashes through the ceiling and lands in the tunnel, the side visible to the camera is not the one with the door. The camera cuts away, and when it returns to the TARDIS, on the same angle as before, the door is now facing the camera, as revealed by the sign and St. John's Ambulance medallion.
Continuity mistake: In the penultimate scene, just before the Doctor melts Amy's Flesh avatar, he points his sonic screwdriver, snapping it to its full length and opening up the four metal bits around the light at the tip. In the next shot, the screwdriver is "closed", but in the shot after that it's "open" again.
Continuity mistake: The Flesh, the substance that the gangers are made of, is capable of replicating people and their clothing. However, devices such as the sonic screwdriver are off-limits, which is why there is only one even after the Doctor's ganger is created. This is made clear when the Doctor tosses the screwdriver to his ganger before the ganger Doctor sets off to look for Rory. However, when the Doctor, Amy and the three human factory workers are trapped in the crypt with the overheating acid pool, the Doctor is seen using the screwdriver to scan the acid, even though the device should still be in the possession of the other Doctor.
Continuity mistake: When Idris/the TARDIS stumbles in the junkyard and the Doctor catches her, just before she tells him that one of her kidneys has failed, her right hand, holding a piece of circuitry, moves between in front of his chest in shots facing him and resting on his shoulder in shots facing her.
Continuity mistake: When the school bus pulls up to drop Amy and Rory off in Monument Valley, there are no other vehicles in the area. When the bus pulls away, the Doctor has suddenly appeared with a vintage station wagon, parked by the side of the road where it should have been perfectly visible. And he was sitting on the hood, implying he'd been waiting there for a bit.
Continuity mistake: When the Doctor starts walking over to the lakeshore after the astronaut appears, he's still holding the wine bottle in his right hand. In the next shot where we can see his hand, the bottle is gone, without him having stopped to put it down.
Revealing mistake: Mels is shot in the stomach by Hitler, leading to her regeneration. Rory, when checking the wound, says he's going to try and stop the bleeding. However, when she stands up while glowing with regeneration energy, and in every scene afterwards where Mels/River is wearing that dress, there is no bullet hole or bloodstain visible.
Other mistake: After River shoots at the astronaut going into the lake, she drops her arm. The next second, she turns around and the gun is holstered without her having made any movement to do so, and there was no sound made.
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Visible crew/equipment: The astronaut coming out of the lake is seen twice in series 6: In episode 1, "The Impossible Astronaut", and in episode 13, "The Wedding of River Song." In "The Wedding of River Song", when the helmet of the suit is lifted the astronaut is revealed to be River Song. However, in "The Impossible Astronaut", when the helmet was lifted, a man's beard can be seen. Since it is a man in the suit, then it was just a double seen in "The Impossible Astronaut."
Add timeCasual Person
Revealing mistake: When the landlord, Purcell, wakes up on his floor because his pet dog is licking his hand, we see a few pieces of dog food fall from his fingers - should have been a re-shoot, but all credit to the actor, he knows it has happened and is quick to hide them again.