They really brought the character to life. Moretz perfectly portrayed the innocent, nerdy and shy high school girl. She's honestly one of the best parts of the movie. She's such a good actress! The only thing that confused me a little was that Moretz looked much younger than Blackley. They could have made her look a little older, but that's about the only flaw I found throughout the movie. Blackley did the same excellent job portraying the role. He definitely looked down; it was that semi-dark look of wanting to be a rock star. The fact that he could sing also made him a better choice. They both showed the emotion/feeling behind the character in such a realistic way. Blackley played his role so well that you started to want your own Adam. You start to believe that it's all true and that this is actually the role they are playing. You really couldn't have asked for more