Continuity mistake: At the end, when Bella is thrown into Edward, she is wearing shoes with a heel, but a few seconds later she is wearing regular boots. (01:32:50)
Continuity mistake: During the confrontation, Aro asks to meet Renesmee who proceeds to touch his face with her right hand. From her perspective, the fingers are well below Aro's side burn. From the opposite shot, her fingers touch his hair.
Continuity mistake: A few brown smudges appear on Alice's note, written on a torn page from The Merchant of Venice, after Bella finds the book. (01:00:20)
Continuity mistake: Edward is about to walk towards Aro. As Renesmee looks up at her father, a substantial amount of hair is covering a quarter of forehead. In the next shot as she's moving behind her mother, her hair is now neatly parted, and her forehead is no longer covered. (01:15:25)
Continuity mistake: When Zafrina unblinds Tania and Kate, you can see her and Senna's eyes being red (like the rest of the movie), but when Bella uses her shield, their eyes become golden. (01:20:25 - 01:21:16)
Continuity mistake: Bella has green eyes in the hospital scene in Twilight (close up shots) but when they zoom out she has brown eyes again.
Answer: It would be rather difficult for the small number of vampires that exist to kill six billion humans. Even if they could, they would be eliminating their food supply. As to the Volturi, it's unlikely all three would die and at the same time. It's probable that a line of succession is in place to replace them. There are other vampires working within the Volturi organization that we don't happen to see.
raywest ★