Goofs

(at around 1h 17 mins) While Harry is running through Snape's memory a scene from the book is presented. It is about when Snape is still a death eater and listens secretly to the prophecy made by Sybil. However Sybil from Snape's memory is shown making a different prophecy. It is the prophecy made by Sybil in Prisoner of Azkaban. Not only the scene but also the dialogues are wrong.

When Harry and the characters are in Gringotts, they go through a waterfall. After they have fallen out the cart, Hermione gets up, wet, but the next time you see her she is dry (her skin and clothes don't reflect light as much as they did in the previous shot), then in the next shot, she is wet again.

In this film, the entrance of the Great Hall is directly connected with the courtyard where Harry fights Voldemort, whereas in previous films it was only accessible by mounting a staircase.

(at around 39 mins) When in the Great Hall where Pansy Parkinson is pointing out for somebody to grab Harry and when his friends starts gathering closer to him, Ron is nowhere to be seen for the entire duration of the scene in any of the people surrounding Harry.

Near the beginning of the film the kids are told by the goblin that there's a fake sword at Gringotts. He says, "It was placed there this past summer." And then Harry says, "And she never suspected it was a fake?" I think he jumped in too soon; presumably the rest of the goblin's lines were, "It was placed there by an acquaintance of yours," or something like that, because Hermione asks, "Who was the acquaintance?" And no one has mentioned an acquaintance.

Everyone says to Harry Potter, "You have your mother's eyes." Daniel Radcliffe, Harry, has blue eyes. But the girl who plays Lily as a child, Ellie Darcey-Alden, has brown eyes, unlike adult Lily actress, Geraldine Somerville, who has blue eyes.

(at around 1h 17 mins) During Snape's memory that Harry sees, after Lily is sorted into Gryffindor she, along with the other first years, are seen wearing the same robes and ties that Harry and co. wore during Harry Potter and the Sorcerer's Stone (2001). When she sits at the table and gets introduced to James and (presumably) Sirius on the other side of her, they are both wearing Gryffindor ties and robes. Since they are both suppose to be first years they should be wearing the plain robes instead.

At the end of the film, the pupils are shown waving out of the compartment-side windows of the Hogwarts Express.

In fact, it is the corridor of those type of train coaches that is platform-side.

When the Snitch opens revealing the resurrection stone, the audio description on the DVD refers to the shape of the stone as 'octagonal'. This refers to a two dimensional eight sided shape - the correct term for a three dimensional shape with eight sides is 'octahedral'.

At the start of the epilogue scene, a Virgin train can be seen at King's Cross station. King's Cross is the southern terminus of the East Coast Main Line between London and Edinburgh. These trains would actually have terminated at nearby London Euston as these trains travelled the West Coast Main Line between Euston and Glasgow as well to a lesser extent Edinburgh.

In one of Snape's flashbacks he is holding Lily's dead body and she is wearing a light blue button up shirt. In versions of the same scene in previous movies, she is wearing a black turtleneck. This is easily explained as it is Snape's memory that we are seeing, not an objective recounting of the situation. Memories can change subtly over time and Snape may not recall all the details perfectly and may have blended that memory with another of Lily wearing that shirt.

(at around 25 mins) When Harry, Hermione and Ron arrive in Hogsmeade, the town is snow-covered. At nearby Hogwarts, there is no snow anywhere. The cold weather was caused by the Dementors.

(at around 13 mins) In Harry Potter and the Deathly Hallows: Part 1 (2010) it was established that the trio had gained control of Bellatrix Lestrange's wand at Malfoy Manor. However in Part 2's Gringotts lobby scene, Hermione-impersonated Bellatrix refuses to show her wand as ID. In the movie Griphook can be heard whispering "They know. They know she's an impostor. They've been warned", so obviously the request for the wand was unexpected even to him. It's thus pretty safe to conclude that the real Bellatrix had reported her wand stolen and alerted Gringotts prior to the trio's attempted break in.

(at around 1h 12 mins) When Voldemort is calling off the Deatheaters his voice echoes, the echoed phrase "dispose of your dead" comes before he actually says the words. This is because his speech is being communicated directly into the minds of everyone in the battle, not shouted through the halls of the castle. This is evidenced by the sound effects and reactions of several characters just before Voldemort starts speaking. This 'telepathic' type of communication would easily allow echoed phrases to occur before the phrase is spoken almost like a thought occurring before it is spoken.

(at around 48 mins) When Harry is talking to the ghost of Helena Ravenclaw and he moves around her, his shadow is seen on her. As she is a ghost it seems like this shouldn't be possible. Ghosts (theoretically, because they aren't real) do have some physical presence, much like a plume of smoke or dust, which can be seen but also passed through. Shadows would be visible falling upon a ghost.

In the final battle, Ralph Fiennes nose is briefly visible instead of Voldemort's characteristic snake nose look.

Several times during the battle at Hogwarts closeups of Harry clearly reveal that there are no lenses in his glasses.

(at about 1:40) When Lucius Malfoy (Jason Isaacs) calls Draco (Tom Felton) to join him and Narcissa (Helen McCrory), Draco is shown, in close up, stepping away from just in front of Luna Lovegood (Evanna Lynch); however, immediately prior to that, Luna can be spotted *without* Draco in sight.

When Lily is sorted into Hogwarts Dumbledore's seat is vacant.

The number of fangs in Nagini's open mouth varies depending on the camera's point of view.

Voldemort never checked if Harry is dead or not. If he did, he would have known Harry's still alive. A real villain should always check himself whether the hero is really dead or not.

(at around 1h 23 mins) Just after Harry has seen Snape's memories in the pensieve, he turns and sits down on the step and the camera can be seen reflected in the gold on the wall behind him.

(at around 1h 15 mins) In the flashback to when Snape and Lily were kids, Lily is shown with brown eyes. This is incorrect because everybody describes Lily to have the same color eyes as Harry in the movie which is blue.

(at around 1h 17 mins) During Snape's memory sequence, when Professor Trelawney is shown giving the prophecy, she is not giving the one that concerns Harry and Voldemort, but rather the one that concerns Peter Pettigrew. Although this the incorrect prophecy, Snape could have observed the memory via someone present using the pensive.

Harry can now feel the Horcruxes, himself being one. However, he didn't feel anything during his encounter with the disguised Nagini in Godric's Hollow, nor when he encountered the diary in the Chamber of Secrets. It shouldn't be a new ability, as he was always a Horcrux himself.

(at around 4 mins) When Harry is talking to Griphook at Shell cottage, Griphook states that the sword in Bellatrix Lestrange's vault at Gringotts is a fake, placed there the previous summer. Hermione then asks, "who is the acquaintance?", when Griphook actually made no reference to any acquaintance at all.

Voldemort is shocked when he realizes Harry & co. hunt for his Horcruxes, having thought nobody knows about this secret of his. He is also shown to feel a Horcrux destroyed (unlike in the books). These two, however, contradict each other, as since he regained his body, Dumbledore did destroy one (the ring), something Voldemort should have felt, therefore he should know about the Horcrux hunt.

When Lily is sorted into Gryffindor and sits between James and Sirius, the two boys are already wearing Gryffindor robes. They should be wearing the same plain black robes Lily is wearing.

In the Room of Requirement, Draco says that he's using his mother's wand, but Dobby took it from her in the previous film.

Voldemort decides to kill Snape because he thinks the elder wand's allegiance is with Snape. However, he commands Nagini to "kill" him. Even if the wand's allegiance was with Snape, it would have transferred to Nagini, not Voldemort.

After Hermione asks Aberforth that Ariana his late sister died very young, Aberforth speaks to Harry as though he asked the question.

Lily and James Potter died many years before Sirius Black and Remus Lupin, but they look the same age as them. Death stops aging of 'ghosts'.