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.
Trivia: Right after the scene where Jacob begs Bella not to go to Italy, it shows Alice and Bella driving away in Carlisle's car; there's a glimpse of them heading down to the end of the street where a road block fence is visible. That fence is there to stop people from watching while filming.