Continuity mistake: When the crack in time appearing on the TARDIS' scanner is shown in the "Previously On" segment, the crack is depicted as extending into the leather casing, whereas in the scene in "The Pandorica Opens" where it appeared, it was confined to the screen. (00:00:57)
Continuity mistake: When the Doctor is preparing to seal Amy inside the Pandorica, the shoulder restraint goes from raised to lowered between shots. (00:12:42)
Visible crew/equipment: When Amy is guesstimating Amelia's age, the camera pans to the right and into a crew member's arm. (00:13:49)
Revealing mistake: In the museum after the Doctor, Amy, young Amy and Rory escape the Stone Dalek, the Doctor uses the Vortex Manipulator to go back in time to tell Rory in 102 AD to let him out of the Pandorica. The third time he goes back, Amy moves despite being dead. (00:19:38)
Factual error: When the Doctor, Amy and Rory are on the roof and the Doctor says "The question for now is total event collapse means that every star in the universe never happened", the Gherkin can be seen in the background. However, the Gherkin wasn't built until 2003, whereas this episode takes place in 1996. (00:22:40)
Continuity mistake: When Rory is telling the Doctor that he can afford to take time off because he just saved all of reality, the Doctor leans against the console twice in two successive shots. (00:51:36)
Revealing mistake: When the Doctor travels back in time after being shot by the stone Dalek, falls down the stairs and tells himself that he has 12 minutes to live we never see either of the 2 Doctors' faces onscreen at the same time, and if you look at the hair on the Doctor that's dying it is completely different to Matt Smith's. That's because it is Gordon Seed, Matt Smith's stunt double.
Continuity mistake: When Amy's dad stands up to present his speech at her wedding, a tear runs down the right side of Amy's face. In the next shot of her the right side of her face is completely dry.
Continuity mistake: When little Amy looks out the window to see what makes the noise, you can see the TARDIS through her window (it's a little blurry) but when you look through the window properly, it isn't there.
Continuity mistake: In the mini-episode "Time", when the Amys start flirting and the Doctor quips about it, Present Amy's hand goes from resting on the handle of the TARDIS door to lowered between shots. (00:01:09)
The Impossible Astronaut - S6-E2
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. (00:02:45)
The Impossible Astronaut - S6-E2
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. (00:06:34)
The Impossible Astronaut - S6-E2
Revealing mistake: When the Doctor is struck by the green light emitted from the astronaut, his right thigh momentarily disappears due to the animation. (This is even more visible when looking at the still of this shot on the Doctor Who website). (00:07:06)
The Impossible Astronaut - S6-E2
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. (00:08:15)
The Impossible Astronaut - S6-E2
Continuity mistake: When the Doctor asks Rory if everyone's cross with him for some reason, his left arm moves from by his side in a close-up shot of him to stretched out to the console in a shot from behind. (00:15:06)
The Impossible Astronaut - S6-E2
Continuity mistake: When the alien kills Joy in the bathroom in front of Amy, the fragments of her body disappear from the floor once the alien approaches Amy. (00:28:28)
The Impossible Astronaut - S6-E2
Visible crew/equipment: Just after Amy comes out of the bathroom, a boom mic can be seen popping up behind the agent's shoulder. (00:28:55)
The Impossible Astronaut - S6-E2
Continuity mistake: When the Doctor goes to take off the spacesuit helmet, his hands change position between shots. (00:32:53)
The Impossible Astronaut - S6-E2
Audio problem: When the Doctor sits in the Oval Office chair, Secret Service Agents aim their revolvers at him. As they do, the sound of a pistol slide racking is heard. None of them are doing anything except raising and aiming their revolvers at him.
The Impossible Astronaut - S6-E2
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.
Suggested correction: The holster is low enough for the subtle movement her right arm makes to be using it. As for the sound, the removal of her gun doesn't make a sound either. The only sound heard is directly before it when she put her medical scanner away.