Continuity mistake: When Amy lies down on the tree stump, her hair is all over her face, but on the wide shot her hair is behind her head. (00:12:46)
Continuity mistake: After the Doctor finds out River's in Stormcage, when he pulls out of the pocket computer to look at the readings from the time crack, it rotates in his hand between shots. (00:19:24)
Factual error: The all important date of 26/06/2010 and it ticks over on Amy's alarm clock right at the end of the episode. However it shows 11.59 AM and flicks over to midday (12.00PM) the next day. The date should've stayed on 25/6 or, as I suspect was the intention, the clock should've read 11.59 PM and then ticked over to 12.00 AM thus changing the date correctly. (00:41:00)
Continuity mistake: In the last scene, when Amy attempts to seduce the Doctor, she pulls his suspenders off his shoulders and he pulls them back on. As a result, the suspenders change position between shots.
The Vampires of Venice - S5-E6
Audio problem: When Francesco says "Did you just say something about Mummy?", his lips hardly move because of the fang prosthetic in his mouth, revealing that the line was dubbed back in afterwards. (00:39:00)
The Vampires of Venice - S5-E6
Revealing mistake: When the Doctor begins climbing a pillar on top of the bell tower, we can see white sky on the central arch. Two other arches in the very same shot show really dark CG sky. (00:42:17)
The Vampires of Venice - S5-E6
Factual error: Isabella is a black girl living in 1580 Venice. So how is it that she has perfectly straight hair, when modern hair care products won't be invented for centuries?
Amy's Choice - S5-E7
Continuity mistake: When Rory and Amy are running from the Eknodine, there is no mud on Rory's back, but he was thrown on his back into mud a minute before. (00:23:06)
Amy's Choice - S5-E7
Continuity mistake: When Amy puts on her poncho and says "If we're all gonna die, let's die looking like a Peruvian folk band", the slit changes orientation between shots as she walks to stand between the Doctor and Rory; from across her shoulders to pointing downwards. And no, she doesn't adjust the poncho onscreen to account for this. (00:27:35)
Audio problem: After landing, the Doctor comes out and jumps in place several times. As he does, the sounds of his landings don't sync up with his motions. (00:04:55)
Continuity mistake: When Amy is being pulled into the ground, there's a shot of her arms where the Doctor's hand gripping her left arm is missing. (00:13:38)
Plot hole: When the Doctor realises that something is coming up from below ground, he tells Nasreen and Tony that at the speed the three transports are coming, the underground arrivals will reach the surface in 12 minutes. The rushed preparations that ensue, including hurrying from the drill hall to the old church and setting up a surveillance network outside, couldn't have taken less than 12 minutes to set up, especially given that they also had to: inform the others trapped inside the shield (Rory, Ambrose and Elliot), inform Rory and Ambrose that their significant others (Amy and Mo) were missing, run between the old church and the block of houses and gather supplies. And, lest we forget, there's also Rory and the Doctor arguing about what happened to Amy and Ambrose's initial skepticism as to what is occurring.
Continuity mistake: Throughout this episode, Amy's earrings seem to disappear and reappear.
Continuity mistake: When Ambrose, while standing with Elliott, admits to killing Alaya, in the first shot, Elliott is standing in front and to the right of Ambrose. In the second shot, he's standing to her left. (00:27:52)
Continuity mistake: When the Doctor stands between Restac and his fleeing companions, using his sonic screwdriver to disable the Silurians' weapons, as the camera angle changes, the Doctor's grip on the screwdriver switches back and forth between pointing it at the lizards and holding it straight up and down, รก la the Neuralizer from Men in Black. (00:30:30)
Continuity mistake: Near the end, when the Doctor is explaining to Amy that she will forget Rory when the crack in time is finished eating him because he's part of her personal timeline, and he has his hands on her temples, Amy's hair is covering her ears in some shots, but not others. (00:40:56)
Continuity mistake: When Amy is trying not to forget Rory, the memory of him getting shot does not show the laser blast striking him. (00:41:44)
Continuity mistake: When the Doctor takes the piece of TARDIS shrapnel out and looks at it, he's holding it differently between the close-up and the wide shot. (00:44:05)
Vincent and the Doctor - S5-E10
Continuity mistake: When Vincent asks Amy "One of my favourite 'whats'?" his right arm is suddenly lowered even though he was just holding up one of his paintings. (00:06:40)
Vincent and the Doctor - S5-E10
Factual error: Amy inspires Vincent to paint sunflowers for his iconic Sunflowers painting. The episode takes place in 1890, even though Van Gogh completed Sunflowers two years earlier in 1888. (00:18:25)
Chosen answer: 1) When Stephen Moffat took over he ignored a lot of what had been developed before (there is not in-universe answer). 2) It would have killed Rose, so the Doctor absorbed the energy. His body regenerated before the energy could do a significant amount of damage that would prevent regeneration.