No no no- those arent strings sweetie, though it may seem like it. Why would Tim Burton use strings? It's simply Edward holding his hand differently, as if he were almost reaching up to cut her hair. Even though he's standing behind her. I used to think they were strings to, but then, if you really look, then you see a little bit of his white sleeve, and that's that. But then again, i may just be an idiot.