You see we read the books so we know better. For someone who hasn't read the books all they know is Voldemort found the elder wand after torturing that old man for its whereabouts. It rightful owner is now Harry because he disarmed its previous owner. The elder wand picks the winner of duels.
Exact replicas don't work- reason being ill tell u.
1: Movies are restricted by play time during production because of cost.
2: Missing Scenes could be added in the Blue-Ray Release.
3: Rowling approved the change so why we complaining.
4: If they showed everything in the movies who would buy the books?
5: The movie left people wondering and questioning , curious and had mysteries.
Biggest Mistake you can do before watching this movie is read the book ! That like adding spoilers with frustration because the book is not an exact script of the movie. Thats why the movie blue-ray case says: Based on the Harry Potter books. It is not an exact duplicate.