Två saker här.
1. Händelserna av den slutliga av Dödliga Hallows
Filmerversionen visar den slutliga striden som liknar "Priori Incantatem" som visas under Goblet of Fire . Men i bokversionen är det inte så.
I bokversionen är sista slaget ganska enkelt. Citerar:
Harry heard the high voice shriek as he too yelled with his best hope to the heavens, pointing Draco’s wand:
“Avada Kedavra!”
“Expelliarmus!”The bang was like a cannon blast, and the golden flames that erupted between them, at the dead center of the circle they had been treading, marked the point where the spells collided.
Harry saw Voldemort’s green jet meet his own spell, saw the Elder Wand fly high, dark against the sunrise, spinning across the enchanted ceiling like the head of Nagini, spinning through the air toward the master it would not kill, who had come to take full possession of it at last.
And Harry, with the unerring skill of the Seeker, caught the wand in his free hand as Voldemort fell backward, arms splayed, the slit pupils of the scarlet eyes rolling upward.
Tom Riddle hit the floor with a mundane finality, his body feeble and shrunken, the white hands empty, the snakelike face vacant and unknowing.
Voldemort was dead, killed by his own rebounding curse, and Harry stood with two wands in his hand, staring down at his enemy’s shell.
( Betona min )
2. Varför fortsatte Voldemort även efter vad Harry sa?
Enkel. Rent unadulterated ego. Han trodde att det var vad som höll på att äga trollen, och trodde inte Harry's (Dumbledore) versionen.
Han trodde att det var oövervinnligt att äga muren gjorde honom oövervinnlig och var arrogant nog för att ytterligare tro att en tonåring inte hade någon chans att slå honom, det också med en halv kokad teori.