in case you can't tell, I love the Twiligh series. I also liked the movie.  Now, I know lots of people are disapointed with how the movie turned out. See, I belive that the actors were just fine. It's the director that made the mistake. She changed S.M.'s books based on what she thought the charaters should have done, which isn't right. When you make a movie about somone's book, you follow the person's book. Not just do what ever you want with it.
Also, I think the two best choice they made were Jacob Black and Alice Culen. I think they were right on with them. And Bella was good too. I think that Rober Patinson, dispite not fitting the phsical image you may have got from reading the books, he still played the part very well.