In Twilight, You will notice that Bella trips and drops things. Example when Bella was walking out the door of Charlie's house she slipped.In the cafeteria, Bella dropped her apple and Edward caught it for her.
She is very very very very very very very very very very very very very very clumsy in all of the most interesting and exciting movies. If you don't belive me read all of the books
Well, when you read Twilight, Bella admits she cannot walk across a flat surface without tripping. You can find many examples.. she always trips somehow. (E.G. In La Push in Twilight she had fallen...