Looking at that image, it seems almost as if the same type of effect might be able to explain that as well, because it's really the same type of image. The most noticably different features are the breasts and tummy, and they're both at exactly the same angle into the shot as Emma's were. Could it pissibly be? Let's anaglyph it and find out. (I had to scale and rotate one of the images before anaglyphing, so these aren't really the best source material for this sort of thing, but it's the best I could find.)
Interesting... The fact that it is passably 3-D (take particular notice of the knife in her belt, her overhanging hair, the space between her face and her shoulder, and the hand that's pulling back the bowstring) means one of two things:
1) this is exactly the same phenomenon as the previous photo, making all that outrage back then for naught as well
2) 3-D images are a lot easier to accidentally produce than I previously stated.
I'm going with the first one, for two reasons: firstly, because it makes me right. Secondly, because none of the 3-D images I've intentionally tried to produce with a camera have been any where near the quality of these two "accidental" ones, let alone having them occur by accident just by modifying a pic in photoshop.
So here's a challenge for the doubters: take this picture of Natalie Portman, make her boobs bigger and do whatever else you want to it and we'll see how it stacks up when converted to a 3-D anaglyph. Making boobs bigger is pretty simple, but I'd like to see if you can actually make it 3-D when you know that's your objective.