12. Here's My Pet Rock(s), And A Picture Of Their Mother
The young Tom Riddle has a photo on his wall in the orphanage of the cliffs where he puts the locket Horcrux. We also see seven rocks on his windowsill, an early indicator of his obsession with the number seven. Hardly a particularly impressive collection.
11. Are The Scratches On Your Face From You Or Her?
Tonks has gone much more conservative in her appearance in this film and Deathly Hallows, matching her husband, Lupin. This plays into the subplot that Tonks went through in the novel of Half-Blood Prince, where she went mousy-haired and her Patronus changed to match Lupin's because she had fallen for him.
10. Mr. Weasley's Man Cave
Mr. Weasley admonishes Harry not to say Voldemorts name while they discuss Sirius in the Leaky Cauldron during Prisoner of Azkaban. Yet when we later see his storeroom of Muggle artifacts, he says Voldemorts name without flinching when telling Harry about the Vanishing Cabinet. Note that Mr. Weasley has collected a laser printer.
9. Silk Suit, Black Tie
When Draco Malfoy goes to the Room of Requirement for the final time, you can see the harp that put Fluffy to sleep and the King from the game of chess from Harry Potter and the Sorcerer's Stone (2001). For someone who is about to carry out the mission of murdering Dumbledore, he is exceedingly well-dressed for the occasion.
