I just wanted to honor who Emily was. She's just a strong woman. Through my journey of playing her, I found a lot of strength, and I think that I've changed, as a female, in the way that I carry myself. To go through something traumatic, like getting your face scarred, it made me analyze vanity a lot. When you have a little pimple and you're like, "Oh, my god, there's an alien on my face!," you feel like it's magnified.

Most of Emily's backstory is written out between New Moon and Eclipse. I'm reading them as we're shooting the films. I haven't read Breaking Dawn yet. It's just too crazy. There's too much going on that you need a map. I just try to focus on one movie at a time. When we were doing New Moon press, people were already asking about Eclipse. I didn't read it until I was ready to go, so that it was fresh and I wasn't jumbled with all this other stuff.

It was a very, very intense film for me. I almost lost my mind because there are scenes where I have to kill people, and that energy is absolutely overwhelming. At the same time, as an actor, you never play a character with judgment. It's not my place to judge the fact that she kills people. It's for me to look at her psychology to see what makes her do that.

Most of the time, it just sat there in my body, until the weekend. After five or six takes of crying, your body does not want to cry anybody. Your body is like, "I'm over this, can we start laughing, or something?," but you have to keep the emotion. It's a really weird process and it definitely just stays with you.

When you're actually feeling a character and you're going through the real emotions, and you're not fake acting, that energy stays with you and sometimes you can't get it off for days. It just resonates in your body, unless you have some sort of release, whatever it is.

They're a handful, but Emily deals with that all the time and, as an actor, I deal with that all the time, so you just ignore it. When Julia [Jones] first came on set, she was like, "How do you deal with it?," and I told her, "You just tune it out after awhile." They were competing with each other, doing push-ups and just being ridiculous, so you just have to zone out.

It was a realization for me when Oprah was talking about New Moon. I was like, "Oh, my god, she's watched a movie that I've been in!" People were like, "It just kicked in for you?," but it's just work for me. The idea that somebody that I've admired for so long had seen something that I'd done was when I understood the magnitude of it.