"Gemma Arterton, Alice Eve, Mia Wasikowska, Emilia Clarke, Felicity Jones, Teresa Palmer and Sarah Gadon all auditioned for the role of Gaby Teller."
sez the Man From UNCLE trivia section here in IMDb (take it with a grain of salt, if you will). If that's the case, bet they're now all breathing a sigh of relief that they didn't get the part.
You four-eyed psycho.

I doubt it. I mean, it's a great role, and yes, I wish she had done "Carol" (and even "Sils Maria") rather than the disappointing "Crimson Peak," but unfortunately, one has to make choices - and I am sure she realizes how fortunate she is that she is considered for - and is often offered - so many quality roles.
Therese and Valentine are roles that have given critical claim to Rooney Mara (possible Oscar winner?) and Kristen Stewart (first American actress to win a Cesar, gasp), but Mia doesn't seem too concerned about that. She's 5b4building an already impressive filmography, and I am positive we'll be seeing a lot of her for many years to come. And yes, I want to see her win an Oscar eventually, and I have a feeling she will. She's here to stay.
Without you, today's emotions would be the scurf of yesterday's.

I'm glad she didn't do it, she looks too similar to Cate, Rooney is a good contrast

This message has been deleted.

In a March 2013 interview promoting Stoker, Mia expressed her disappointment at not being able to do the movie, mainly for losing the opportunity to work with Cate.
You four-eyed psycho.

I doubt it. I don't think she turned it down; it had more to do with the schedule shifting around in those films - but that's what happens a lot.