Harry potter and the Deathly Hallows

The villan in this movie is Lord Voldemort. He is against Harry and the tension is that only one of them can survive so they have to have a duel to the death and only they can kill eachother. They both are wizards and their wands are twins so they can only harm eachother using them. Therefor they must use anothers wand. Lord Voldemort built up his own army. Everyone fears to even say his name. He is possibly the strongest wizard in the story.