Especially when you see pics of her at the premier of Under The Skin and others recently, way more busty than the last few years. Just depends what she's working on and how much training it requires.
She's clearly a curvier lady, that's her natural state. It's only when she's doing a lot of fitness work for a film that she loses that. And recently, due to being in the Marvel universe, that's more often than not.
Her at the UTS premier beginning of the year. Much curvier than the 'after' pic above, yet it's from after that picture.