Yeah, who is that actress and how old is she? She has a really cute, if a little disturbing, voice in the trailer.
Edit: Oh interesting, according to IMDB she's the new Kitty Pryde/Shadowcat in the X-Men 3 movie. It's the girl running through walls with Juggernaut chasing her.
She's also 19.
She must have her ID checked all the time when she goes out.