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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Trivia: Marcus Belby actor Robert Knox was stabbed to death outside a pub in England shortly after completing principal photography. He died protecting his brother during a fight, and the killer was convicted in 2009 and sentenced to a life term in prison.

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Trivia: Christian Coulson, who played Tom Riddle in the second film, expressed interest in returning for this film, but David Yates felt Coulson was too old to convincingly play the role again. Ironically, Coulson was "too old" to begin with, being almost ten years older than the age group Chris Columbus had set for auditions.

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Trivia: When Harry and Ginny are in the Room of Requirement hiding the Half-Blood Prince's potions book, you can see the White Queen from the chess game of the first movie among all the stuff kept in that room.

Trivia: In the Room of Requirement, opposite the Vanishing Cabinet, stands the bewitched harp from Fluffy's chamber in Harry Potter and the Philosopher's Stone , which was used by Professor Quirrell to put the three-headed dog to sleep over the trap door.

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Trivia: The scene where Harry and Ron are taking the Hogwarts Express back home was actually filmed in Norway.

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Trivia: The final model of Aragog that they slid into the grave weighed about 3 quarters of a ton.

Trivia: This is the only movie in the Harry Potter series to be nominated for the Academy Award for Best Cinematography.

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Mistakes

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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Quotes

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Questions

Question: When Harry sees into the past of Dumbledore's meeting with young Tom Riddle, Tom admits that he hurts people if they are mean to him. Since Tom openly admits this with obviously no guilt or remorse, why would Dumbledore take him to Hogwarts to learn magic instead of leaving him at the orphanage?

Answer: Leaving an untrained young wizard, who obviously has some behavioral issues and has no idea he is magical, alone in the Muggle world would be extremely dangerous. Dumbledore does not yet know that Riddle will become evil, but like any teacher, he wants to give a troubled youth an opportunity to find a new path in life.

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Answer: Not to mention, Hogwarts is not the only magical school in existence. A wizard as powerful as Tom Riddle, if Hogwarts had not taken him in, there's a good chance another school that was more willing to teach Dark Arts could have taken him in, which could have been a lot worse for the wizarding world. Good chance this crossed Dumbledore's mind, and he figured Tom Riddle had a better chance at Hogwarts, where they'd teach him to properly control his magic rather than another school that will just teach him more dark magic.

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