I think she plays a perfect Bella, I personally wouldn't want to see her replaced by anyone else. All the weird things she does actually makes her seem more human to me rather than someone overacting?? anyways thats just my two cents, good topic!
oh yeh has anyone else noticed how in the movie shes always doing this weird breathy thing. Like shes exhaling loudly or something.... it drives me a little crazy lol I'm telling you if you havent already noticed you will now and it will be all you can think about when your watching it!