Continuity mistake: In the scene where Edward goes back to the highway from rescuing Bella. We see he stops the car when he turns, when the camera changes we see the area around them moving but we never heard or see the car accelerate.
Suggested correction: This was another car, not Edward's car, silver too, but totally different.
Continuity mistake: On Bella's first day of school, when Eric comes up and introduces himself, Tyler passes them, going the opposite way, and looks at Bella. But in the last scene he was sitting at his car, making no move to leave, let alone go back to the parking lot. (00:06:25)
Suggested correction: He could easily come through another exit.
Continuity mistake: At the prom Edward gives Bella a glass in her right hand, in the next shot beckons Bella to Eric and Angela with the right hand. When camera goes back the glass has vanished. (01:45:20)
Suggested correction: She was holding the glass with her left hand, which was out of the frame.
Continuity mistake: Victoria is making prints to throw off the cops...she's using sandals but the print is of a bare foot.
Suggested correction: She was barefoot, what sandals?
Continuity mistake: When Edward and Bella are talking by the cliff, its raining and they are both soaked. Next scene shows them completely dry. It's not different days considering they have the same clothes on.
Suggested correction: When Edward is soaked, he is wearing a dark jacket, when he is dry, he has a light grey jacket, totally different.