Mistakes in Harry Potter and the deathly hallows part 1 movie

==About Albus Dumbledore's Wand after died..== The Elder Wand was the most powerful wand in existence. Its owner could have used it to cast spells more powerful than believed to be magically possible.[1] For example, Harry Potter was able to repair his regular, Phoenix feather wand using the Elder Wand in 1998, even though broken wands were supposed to be damaged beyond magical repair.[1]

Although the wand was rumoured to be unbeatable, in Dumbledore's commentary on The Tale of The Three Brothers, in The Tales of Beedle the Bard, he commented that the Elder Wand, while being immensely powerful, had never been unbeatable, as it had been beaten hundreds of times.[2] For it to pass to a new master, the wand must have been beaten, and as there have been many masters of the wand, it was obvious that it was possible to defeat the wielder of the Elder Wand. For example, Grindelwald, though he had mastered the Wand, was still defeated by Dumbledore in 1945.[5] Also, fifty years later, Dumbledore could not truly defeat Lord Voldemort in their duel at the Ministry of Magic due to the latter's use of Horcruxes, although he did fight him to a stalemate.[7] As The Elder Wand was the only wand in existence that has Thestral tail hair as its core,[8] it was also immune from the Priori Incantatem effect, adding to its power.[9]

''Voldemort stood up. Harry could see him now, see the red eyes, the flattened, serpentine face, the pallor of him gleaming slightly in the semidarkness. ''

''"I have a problem, Severus," said Voldemort softly. ''

''"My Lord?" said Snape.''

''Voldemort raised the Elder Wand, holding it as delicately and precisely as a conductor's baton. "Why doesn't it work for me, Severus?" ''

''In the silence Harry imagined he could hear the snake hissing slightly as it coiled and uncoiled--or was it Voldemort's sibilant sigh lingering on the air? ''

''"My--my lord?" said Snape blankly. "I do not understand. You--you have performed extraordinary magic with that wand." ''

''"No," said Voldemort. "I have performed my usual magic. I am extraordinary, but this wand...no. It has not revealed the wonders it has promised. I feel no difference between this wand and the one I procured from Ollivander all those years ago." ''

''Voldemort's tone was musing, calm, but Harry's scar had begun to throb and pulse: Pain was building in his forehead, and he could feel that controlled sense of fury building inside Voldemort. "No difference," said Voldemort again. Snape did not speak. Harry could not see his face. He wondered whether Snape sensed danger, was trying to find the right words to reassure his master. ''