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)
Factual error: When Bella is driving back from Seattle, the speed limit signs say 80. There is no 80mph speed limit road between Seattle and Forks; the movie was filmed in Vancouver and the sign is, in fact, in kph. (01:04:55)
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: 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)
Other mistake: Neither Edward nor Bella are sparkling at the very end of the movie in the sunny scene in the meadow of purple flowers, as the vampires are supposed to. (01:40:00)
Other mistake: In the credits Emmett is written "Emmert". While the font is odd, the R is noticeably different to the T next to it. (01:41:05)
Suggested correction: It's spelled correctly in the credits of this movie.
Other mistake: The first ten minutes of the film you can see where the make-up stops at the top left of Bella's hairline.
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.
Plot hole: When Bella drops off Jacob and Renesmee at Charlie's house, she says she has to do an errand and will be back soon. She then proceeds to drive to Seattle, which is about 130 miles east and separated by a large body of water called Puget Sound. Being that I live in Seattle, I know that the most direct route from Forks to Seattle involves driving from the outer Washington coast through Port Angeles, then Sequim, going over the Hood Canal (toll) Bridge, before going to plus waiting for and riding a ferry across Puget Sound from Kingtston to Edmonds, and then at least another 25 minutes driving south on I-5 to Seattle. Even if Bella drove very fast (which she could not possibly do the entire way), it would take close to four hours one way, depending on traffic, wait and ride time for the ferry, stopping to pay at the toll bridge, and general driving conditions. Bella would also spend almost two hours in Seattle conducting her business with Mr. Jenks (which include driving through the busy downtown traffic, parking, going through the mall to the restaurant, and driving through the city again back to the ferry terminal) before returning to Forks. Depending on what time she originally left to when she got back home, it would be late in the evening. There are several other ways to get to Seattle from Forks, but they would take just as long or much longer.
Character mistake: In the scene where Carlisle returns with Alistair he asks Edward how many vampires showed up, Edward replies 18. At that point there were only 16. Vladimir and Stefan arrive a few scenes later and are part of the group assembled for battle that totals 18 of the witness vampires.
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.
Audio problem: When Jacob and Bella are in the car, on the way to Charlie's, Jacob is laughing about "Dracula 1 and Dracula 2" being "creepy." He lets out a huge loud, chuckle in the audio, yet the audio doesn't match his mouth, as his mouth is merely in a tight grin.
Revealing mistake: In the final battle scene, when Edward does a flip around (and then breaks someone's head off), as he flips, you can see that the stunt double doing the flip looks totally different - taller, thinner, lankier, different face and hair.
Other mistake: In the first Twilight, vampires bones break like normal humans, as demonstrated when Alice breaks James's neck. In New Moon, they break like concrete, as the man whose head the Volturi ripped off has a grey stump. In Eclipse, lots of vampires lose bodyparts in the big battle, and they all break like ice, as they have white shiny stumps. In Breaking Dawn Part 2, lots of vampires lose bodyparts in the imagined battle, and they break like china, as they have brown stumps.
