Cameron's body

I just watched this movie after seeing most of Cameron's work, and I couldn't help but notice that the normally flat chested actress actually had something to talk about in this movie. I'm assuming some work went into that - push-up bras, tape, padding, strategic clothing. Either that, or she's lost even more weight since that movie. I remember in Knight and Day (shot 5 years later), she was completely flat chested. Anyway, just wondering if anyone else noticed. I thought she looked amazingly fit and beautiful - was just surprised to see her with boobs.