Goofs for
Harry Potter and the Half-Blood Prince (2009) More at IMDbPro »

• Continuity: During the scene in which Harry consumes the Felix Felicis, he empties the entire vial into his mouth. However, in the following shot when he is holding the vial between his hands and is speaking to Hermione and Ron, the vial is completely full with the stopper still on.
  
  
• Revealing mistakes: Several times throughout the movie, Harry's glasses clearly have no lens in them. They are just the frames. This is clearly evident when Harry and Ron Weasley are lying in bed and Harry is looking at the map showing the foot prints. The rest of the scenes show the glasses having lenses in them.
  
  
• Revealing mistakes: During the quidditch match, when Ron is celebrating a save, the wind blows his robes and you can clearly see the bicycle-like seat attached to his broom.
  
  

• Continuity: In the scene in the 3 Broomsticks pub, Slughorn spills some of his drink on the table and on Hermione. But a minute later when we see the table filmed from the side Slughorn was on, the table is dry.
  
  
• Continuity: In the last scenes of Dumbledore in the tower his beard was untied then a few seconds later was tied for the remainder of the scene.
  
  
• Revealing mistakes: Near the end of the film, when Harry is lying on the ground outside Hagrid's cabin, Snape kicks Harry's wand away from his hand. When he does so, a square of neon tape is clearly seen, almost right in the middle of the shot, where Harry's wand was placed, so that actor Alan Rickman would know where to kick.
  
  
• Revealing mistakes: When Professor McGonagall is examining the cursed necklace, she is standing in front of a window. During several of the shots you can see right through her.
  
  
• Continuity: When Draco unveils the vanishing cabinet in the Room of Requirement, there is a large amount of dust on the tapestries. When he goes back later in the movie the same amount of dust has gathered on the tapestries. The same amount of dust would not have accumulated in such a short amount of time.
  
  
• Continuity: During the first gathering at Hogwarts in the hall, the main entrance is closed while Dumbledore is speaking. When the camera changes, it is positioned outside in the corridor meaning the door opened somehow within seconds.
  
  
• Continuity: The title says "Half-Blood", but the writing in the prop book says "Half Blood".
  
  
• Continuity: In the 3 Broomsticks, before Professor Slughorn spills his drink, from different angles it goes from having a foamy head to no head.
  
  
• Incorrectly regarded as goofs: The movie shows the destruction of the Millennium Bridge in London. The events in this part of the movie occurred mid-1996. The bridge's construction began late 1999. But while the books take place in the 1990s, no such time line has ever been given in the movies.
  
  
• Continuity: When Harry and Slughorn go visit Hagrid, Hagrid sits with a wine bottle and an earthenware goblet and Slughorn has only a goblet on his side of the table. At the end of the visit, Slughorn's goblet magically appears right next to Hagrid's goblet on his side of the table.
  
  
• Continuity: It has been established in other films that the Weasley home is surrounded by trees. In this movie it is located in the middle of a huge empty field.
  
  
• Crew or equipment visible: At the beginning when Harry and Dumbledore first disapparate, there is a full shot of them walking up to the entrance of the house. In this full shot, you can see Dumbledore's shoes sticking out of his robe as he walks, only he is actually wearing those blue bags on his shoes, the ones they wear in between takes so as not to damage the set floors.
  
  
• Incorrectly regarded as goofs: Katie Bell is seen in Harry and Ron's potion class, despite being in the year above them. This was changed for the movie to simplify the story.
  
  
• Continuity: During the Felix Felicis scene, when Slughorn gives it to Harry, he is holding it with his hand below the bottle. In the next clip, his hand is above it.
  
  
• Revealing mistakes: During the scene in Professor Slughorn's lesson, the students are told to make a Draught of Living Death, the recipe for which "can be found on page 10". During the lesson, it is quite clear that Hermione has her book open somewhere in the middle (circa page 200).
  
  
• Incorrectly regarded as goofs: According to the last movie, you need to know the purpose of the Room of Requirement to be able to access it. Harry and Ginny were looking for a place to hide the book, so the Room allowed them access.
  
  
• Incorrectly regarded as goofs: During the scene when Dumbledore first introduces Harry to Professor Slughorn, Slughorn's robe changes color more than once. However, this is due to the florescent lighting outside of Slughorn's home.
  
  
• Incorrectly regarded as goofs: Dumbledore has Riddle's diary in his possession. The last time it was shown was in the the second movie, and Lucious Malfoy was the last person to have the diary. Lucious then gave the book to Dobby with Harry's sock hidden inside to set him free, Dobby was still holding it when he stopped Lucious from cursing Harry. The book was left on the floor, meaning either Harry or Dumbledore could return the book to the headmaster's office.
  
  
• Incorrectly regarded as goofs: At the end of the movie when everyone is holding their wands skyward in tribute, Hagrid can be seen holding a wand. In the first movie, he had hidden his first (broken) wand in a pink umbrella, but after his name was cleared in the second movie, he was able to get a replacement wand.
  
  
• Incorrectly regarded as goofs: When Harry first has the Half Blood Prince's potions book, his signature is in the front of the book. When Ginny takes it from him, she reads his signature from the back. However, the book may have been signed at the back and the front as later in the film we see the words written in two different styles suggesting multiple instances.
  
  
• Crew or equipment visible: When Harry and Dumbledore are standing in the tower three men are seen to walk across the room on the right.
  
  
• Continuity: In the first scene of Dumbledore and Harry's lessons, at the beginning of the scene, you can clearly see that Dumbledore is wearing his glasses, but when Harry enters the room a minute later, Dumbledore is not wearing them.
  
  
• Continuity: The potions book which Harry gets from Slughorn's cupboard has the words "This book is property of the Half-Blood Prince" clearly handwritten on the first page. In a later shot the handwriting changes to a more print-like font.
  
  
• Incorrectly regarded as goofs: The 'wheat/corn' outside the Burrow at Christmas is actually a reed bed, which can definitely grow to the height shown in the film in winter in Britain.
  
  
• Errors made by characters (possibly deliberate errors by the filmmakers): During the Quidditch match, Hermione is wearing a green wool cap. This implies that she is a supporter of the Slytherin Quidditch team. She should have been wearing a maroon cap.
  
  
• Continuity: The newspapers in the movie imply that there was a death toll from the bridge collapse at the start of the film, even though when watching the scene, everybody seemed to escape from the bridge safely and not a single person is in the water.
  
  
• Incorrectly regarded as goofs: Dumbledore and Harry apparate from Hogwarts to the rock cave, and apparate back. According to the books, no one can apparate into or out of Hogwarts. However, Dumbledore explains that "being me has its advantages" - such as apparating in and out of Hogwarts.
  
  
• Revealing mistakes: In the scene with Hagrid and Prof Slughorn, you can see them both moving their hands when talking. Slughorn's hand often disappears/seems to go right through Hagrid's arm. A graphics error as they would not have been filmed together due to sizing issues.
  
  
• Continuity: The Felix Felices potion (which is supposed to be gold) changes from yellowish to clear throughout the movie.
  
  
• Continuity: In the scene where everyone in Gryffindor is celebrating the won Quidditich match, Dean can be seen standing behind Hermione, wearing a light pink cardigan. Towards the end of the movie, when everyone has lifted their wands, Hermione is wearing it.
  
  
• Continuity: During the destruction of the Millennium Bridge: to begin with the bridge is full of people, including a lot of school children, walking across. As the bridge begins to wobble, people start to trip up and fall down. When we see the bridge from above, as it is destroyed seconds later, there aren't any people on it.
  
  
• Incorrectly regarded as goofs: In 1 or 2 scenes in the dining hall, Lavender Brown is shown sitting at a different table across from Ron Weasley. They were both in Gryffindor, so they should be at the same table. However, it is not uncommon for students to be seated at other Houses' tables. In a particular scene where Lavender is seated at a different table, she is mad at Ron. This is probably why she chose not to sit at the Gryffindor table.
  
  
• Continuity: In the scene where Hagrid is mourning over Aragog's dead body, Harry stands next to him. If you look closer, you'll notice that in faraway shots, Harry's head is clearly above Hagrid's elbow. However, in the closer shots, his head is below Hagrid's elbows.
  
  
• Continuity: Near the beginning of the movie, when Harry, Hermione, and Ron are sitting on the floor talking in Ron's room at the Burrow, the position of Hermione's legs changes frequently from cut to cut.
  
  
• Revealing mistakes: During the scene where the bridge is collapsing, people are seen in an overhead shot running towards safety in terror, but past the entrance way/exit, there are no people running at all, only people casually walking through sight-seeing.
  
  
• Continuity: After Harry scoops up a sip of potion from the basin, there is still a scoopful left in the basin. However, after Dumbledore drinks it , the basin appears to be empty and Harry grabs the locket from the empty basin.
  
  
• Incorrectly regarded as goofs: In the beginning of the movie, the waitress says that she gets off work at 11 o'clock, but soon after in professor Slughorn's home, all the clocks say 10:35. However, they stay at 10.35 throughout the scene, which lasts several minutes, suggesting the clocks are broken.
  
  
• Continuity: In the previous movies and books, Avada Kedevra is green. However, when Snape kills Dumbledore, it is blue.
  
  
• Continuity: When Slughorn asks Hermione what her parents' professions are, she responds dentists and he asks if that is a dangerous profession, implying he does not know what that is. However, in Harry Potter and the Chamber of Secrets (2002), the clock that locates the Weasleys lists "dentist" as a possible location, implying that wizards visit the dentist.
  
  

• Plot holes: SPOILER: When Luna Lovegood reveals Harry in the carriage, she uses a spell to remove his invisibility cloak, however, it is a Deathly Hallow, and as such is unaffected by spells. This is a vital point in the 7th book.
  
  
• Continuity: SPOILER: In the establishing shot right before Snape casts Avada Kedavra the tower's safety railing is clearly visible directly behind Dumbledore. But when the camera cuts to Harry's perspective of Dumbledore being hit by the spell, the railing has disappeared and Dumbledore falls right off the edge of the tower where the railing had been.
  
  
• Incorrectly regarded as goofs: SPOILER: In the scene where everyone has lifted their wands in remembrance of Dumbledore, it would appear that Hagrid also has a wand raised; he doesn't. What is actually seen is the hand and wand of the person standing behind him.
  
  

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