Like many of us, I was really impressed with Ashley Greene's performance. She didn't have much dialogue in Twilight (the only film I've seen so far), but she did well with her relatively few lines. In the absence of more to say, she did a lot physically to establish Alice as a character in our minds--her twirl the first time we see her in the cafeteria, the glow in her face the first time she meets Bella, her pitching wind-up. I watched the movie prior to reading any of the books, but thanks to Ashley's performance I was all primed to like Alice when I started reading.
Needless to say, I'm looking forward to getting my little mitts on the New Moon DVD and seeing what she does with what should be a somewhat expanded role to play.
"May the hinges of friendship never rust, nor the wings of love lose a feather"--Scottish blessing