Continuity mistake: After Bella awakes from the first nightmare, we see her Romeo and Juliet book on the pillow beside her. When Charlie brings in her presents the book is gone, but then reappears on the pillow between shots. (00:03:00)
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. (00:05:10)
Continuity mistake: When Alice jumps over the staircase in school to wish Bella happy birthday, between shots during the scene the positioning of the decorated scarf around her neck varies. (00:07:30)
Continuity mistake: When Bella goes to the Cullens' house for her birthday party, Alice takes the new camera that Charlie got Bella and takes a picture of Bella and Edward. But when Bella prints out the picture and puts it in her scrapbook, it looks nothing like the picture Alice took. Given we see the entirety of her visit from start to finish, there was no other opportunity for a different photo to be taken. (00:13:30)
Continuity mistake: At Bella's birthday party, when Edward pushes Jasper away after attacking Bella, Emmett turns his head to follow Jasper flying through the air. But in the next shot, he is looking in front of him as though he didn't see anything. (00:14:20)
Continuity mistake: In the birthday party scene, as Edward sends Jasper flying with a shove, it first shows Edward pushing Jasper in a downward arc, the next cut shows Jasper flying up through the air as he hits the piano. (00:14:20)
Continuity mistake: During the paper cut scene, when Bella is thrown against the table, there are 5 vases of flowers and 3 sets of candles. After she hits the table she lands against one of the vases and knocks the 2nd one to the floor, but the next shot shows only one vase left upright. (00:14:50)
Continuity mistake: In the scene where Carlisle is treating Bella's wound there is a shot of the bowl where he is putting the glass from the wound. You see that there is one piece of gauze. He then starts stitching up the wound and when he lights the contents of the bowl, you see lots more gauze that he hasn't used in there. (00:15:20 - 00:16:25)
Continuity mistake: After the ill-fated birthday party, Edward drops Bella home in her car. After the kiss, in one shot Edward's face is very close to hers, forehead resting on hers. When it cuts, his face is far away from hers. (00:18:55)
Deliberate mistake: In the scene where we see Bella in her room looking out the window, the months are passing, but she is always wearing the same clothes. (00:28:30)
Visible crew/equipment: In the scene where Bella walks toward the strangers on motorcycles, her mic wire is visible through her jeans. (00:32:10)
Continuity mistake: When Edward and Bella turn around to leave the Volturi Chamber, Edward's robe is tied. When they show them leaving from the back it is undone. (00:50:35 - 01:50:35)
Continuity mistake: After the scene where Jacob rescues Bella from the ocean, when they're driving home it's not dark outside as they're pulling up into Charlie's driveway. But once Jacob starts talking about Sam and Emily, it's darker outside. Even after they get to the door. (01:23:30 - 01:26:55)
Continuity mistake: When Bella and Jacob are driving back to Bella's house after she cliff jumps, the glass in the back of her truck goes from dirty, to clean and back to dirty again. (01:23:40)
Continuity mistake: Bella goes to Italy to save Edward. Alice drops Bella off - when Bella gets out of the car to ask where Edward will be, first you see Bella in front of the car door, then she is suddenly behind the car door. (01:36:35)
Continuity mistake: Bella's bite mark scar is not in the position it should be, compared to where James actually bit her in Twilight.
Character mistake: When Edward leaves Forks, he does it because he believes that he will be protecting Bella. Except that he seemed to have forgotten that Victoria was still in Forks and was intent on killing Bella.
Continuity mistake: When Bella pulls up at the Black's, she spots Jacob, gets out of her truck and her door doesn't fully close . Later you can see in the background that the door is firmly shut.
Revealing mistake: Just as Jacob enters Bella's room through the window, a stunt prop - white band on his right wrist - is briefly visible.
Suggested correction: There is nothing on his hand if you watch frame by frame.
Continuity mistake: When Jacob first shows off his tattoo, it is up at the top of his shoulder. Then when he is in the forest at the end with Bella and Edward, his tattoo is about 2 inches further down his arm.