Visible crew/equipment: In the scene where Bella walks toward the strangers on motorcycles, her mic wire is visible through her jeans.
Continuity mistake: When Bella is in the parking lot at school in the beginning, Edward walks toward her. Bella's hair is neatly pulled off to the side. When he leans in for the kiss it is suddenly stuck to her forehead, and when Edward tells her Jacob wants her, it's suddenly back to normal.
Revealing mistake: When Edward takes his shirt off on the steps in Voltaire, his nipples are different colors and sizes. The closer one is grey while the far is more pink as though the makeup had rubbed off.
Revealing mistake: In the scene of the fight in the chamber of the Volturi when Demitri throws Edward on the stairs you can easily see the body of Pattinson's stunt double, there's a clear six pack, a tanned body and no body hair.
Visible crew/equipment: In the very last scene, right before the ultimatum, if you look into the tail lights on Edward's car you can see various members of the crew reflected.
Visible crew/equipment: In the scene when Edward left Bella, when Bella is running after Edward, you can see the shadow of a crew member briefly on the tree.
Other mistake: In Volterra when Edward has his shirt off, his face and neck are a different color than the rest of his skin.
Continuity mistake: Bella just went back to the meadow and is talking to Laurent. Throughout the whole scene in the meadow, her hair changes on her right ear. It goes from behind the ear, to fully covering the ear, to half covering the ear, and back and forth between those. And in the beginning, her hair is near perfect, but by the end, her hair is more wispy and not-so-matted to her head.
Continuity mistake: Right before Jacob comes through Bella's window, it shows her sleeping and "dreaming" of Victoria coming to get her. If you look, the camera really focuses on the dreamcatcher and how it's hanging above her on the bedpost. It is hanging off to the side of the middle hump. Immediately, Jacob comes through her window and focuses in on the dreamcatcher hanging on the bedpost which is now neatly hanging in a completely different way, perfectly laid over the center of the bedpost.
Continuity mistake: In the Volturi Chamber, when Aro moves forward to kill Bella after he says it's a sadness because Edward does not intend to give her immortality, you can see Alice's hair and part of her face along the right side of the screen. Actually, at this point Alice is standing to the left and behind Bella, being held by the neck by Dementri.
Continuity mistake: When Bella is at the cafeteria table with Mike, and he is asking her to a movie, her hair keeps moving from behind her ear to hanging in front, and back again.
Continuity mistake: In the dirt bike scene, Bella takes off and starts to lose control. The camera pans so it is showing her hands on the bike, losing control, and she doesn't have a very stable control on the direction the bike is going. It looks as if she is going toward the right, into a small ditch, about to crash. The camera then shows her face, and she is still in the middle of the road, not close to crashing yet, with decent control of the bike.
Continuity mistake: In the scene where Bella is in the meadow talking to Laurent, Bella's hair is at first straight and then in the next scene it is wispy and pushed back and then it is straight again.