Harry Potter and the Half-Blood Prince

Continuity mistake: In the Great Hall, when Ron (wearing his Quidditch uniform) asks Hermione about the Slug Club, Ron's right arm lies on the table in front of him in shots from behind, but in shots facing him his right arm is down beside him.

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Continuity mistake: When Hermione opens the locket to read the note, the locket and chain's position changes in her hand between consecutive shots.

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Continuity mistake: At the end of the movie, there is a long shot of Hermione, Ron and Harry atop the Astronomy tower. In this long shot Hermione's hands are in different places compared to the previous close up.

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Continuity mistake: During the Slug Club's dessert, as Slughorn speaks to the students, their ice cream, syrup, thin wafers, spoons, etc, change depending on the camera angle.

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Continuity mistake: When they are at The Three Broomsticks pub Hermione orders 2 butter beers and a ginger wine, but they all drink butter beers.

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Suggested correction: Hermoine orders 3 butterbeers and asks for some ginger in hers. She does not order 2 butterbeers, nor does she ask for a separate ginger wine.


Continuity mistake: In Fred and George's joke shop Ron asks how much something is, the twins reply 5 galleons, one of the twins (closest to Ron) is leaning against the banister then in the next shot of him he is in a different position.

Continuity mistake: In the Christmas scene at the Burrow, while Harry, Lupin, Tonks, and Mr Weasley are talking about Snape: notice the trays of candies/baked goods on the table. When they are done talking and Ginny comes to sit down and give Harry a bite, a spot on the table has suddenly cleared for her to sit down her tray when Ron comes to sit in the middle of Harry and Ginny.


Continuity mistake: When Death Eaters reach Diagon Alley, there's not many people there; but after they crash there with Ollivander, the alley gets pretty crowded immediately.


Continuity mistake: When Ron sits down with Harry and Hermione in the Great Hall before Quidditch, the bowl/spoon is either right beside Hermione's left hand or farther away, depending on camera angle.

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Continuity mistake: In Potions class, just before the students go to their cauldrons to prepare their Draught of Living Death, Hermione stands in front of Harry, but in the long shot she is instantly beside him, then she's suddenly back in front of Harry again.

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Revealing mistake: It is not what is seen here that is the problem, but what we don't see on the Hogwarts Express; first on the way to Hogwarts when Harry, Ron, and Hermione are in their compartment talking about Draco, and second, during holiday break, when Harry and Ron are talking about Unbreakable Vows. As the camera faces the large compartment window, we see the scenery out the window, but as the train speeds along, the scenic reflection of the windows opposite it, in the corridor, should be seen but isn't. What is reflected is the light colored wall of the compartment beneath the blacked-out window. The camera filming the shots from this angle is positioned at that window, and to hide the camera/crews' outline, the window was covered.

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More mistakes in Harry Potter and the Half-Blood Prince

Hermione Granger: She's only interested in you because she thinks you're the Chosen One.
Harry Potter: But I AM the Chosen One.

More quotes from Harry Potter and the Half-Blood Prince

Trivia: Young Tom Riddle is played by newcomer Hero Fiennes-Tiffin, who is the nephew of Ralph Fiennes, the actor who plays Lord Voldemort, aka Tom Riddle.

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More trivia for Harry Potter and the Half-Blood Prince

Question: Instead of using the Pensieve to view Voldemort's and Slughorn's memories, wouldn't it have been much easier for Dumbledore to simply tell Harry of his first meeting with Tom and Harry simply asking Slughorn what he knew?

Answer: The purpose of the Pensieve is to preserve the memory exactly as it was recorded. Telling Harry something years after an event occurred is not as effective or as accurate as seeing. It is more impactful if Harry can watch events exactly as they unfolded. Regarding Slughorn, he had refused to give his complete memory because he was ashamed of the unintentional part he played in Voldemort's plan to create the Horcruxes. He was duped by Riddle, but he still did not want anyone to know how foolish he was.

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Answer: Dumbledore went to great lengths to recover the modified memory from Slughorn and convince him to return to Hogwarts as a teacher. Asking Slughorn about the memory upfront would greatly reduce their chances of getting the rest of the memory. It was important for Harry to charm Slughorn because that was one of his weaknesses. He held Harry's mother in high regards, so Harry really was the only key to getting the memory.

Answer: It would have been pointless for Harry to simply ask Slughorn about Riddle because, as Slughorn previously did, he would react angrily, simply refuse, lie, or alter or delete facts as it was too painful and he was too ashamed to admit what he'd done. Even if Slughorn did tell him, memories are tricky, and, over time, people recall facts differently than what actually happened. Dumbledore needed the pensieve for both his and Slughorn's memories so Harry would have an accurate as possible picture of what happened. This is also J.K. Rowling's magical world. It would be pretty dull, literary-wise, to simply have Dumbledore or Slughorn tell Harry what happened.

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