The Problems with the DH movie.

[Miles]

> Eggplant:
>> I have no reason to believe Snape knew Draco was the master of the
>> Elder Wand, no reason to think Snape knew more wand lore than Tom
>> Riddle Junior. <snip>
>
> Carol responds:
> Tom Riddle, unlike Snape (a Dark Arts expert), didn't grow up in a
> Wizarding household. Snape would at least be familiar with the Elder
> Wand from Tales of Beedle the Bard, as Ron was. Voldemort knew only
> what Ollivander told him. And Snape certainly knew that Draco had
> Disarmed DD. He becomes very pale when he hears that LV has taken
> that wand from Dumbledore's tomb. That seems to be the moment when he
> hears his death knell.

Miles
I know it's a bit unfair to shout "it happened offpage", but I think in this 
case we can be quite sure that Voldemort has read many books about wizardry, 
and quite certainly about wandlore as well. He was supposed to be the most 
brilliant student Hogwarts ever saw (at least since Dumbledore), and we all 
know that pure talent is not enough even in the magical world.

Unlike Harry, who wouldn't touch a book unless he is forced to do by a 
teacher, and even then would try to skip parts of it and ask someone to tell 
him the essentials (Hermione), Voldemort does not need to ask Ollivander for 
what is written in books, but for the kind of knowledge only the Loremasters 
have.

Voldemorts main problem is not knowledge, it is his impression that magic 
will always work in his favour, and his arrogance towards all possible 
outcomes of magic that would work for his enemies: Lily's sacrifice, priore 
incantatum, wand ownership... I think if he would have been asked in a (very 
theoretical) examination, he would have been able to describe and explain it 
thoroughly.