3/20/2015 2:20 PM ET
Can you even believe it's only been three months since Rosamund Pike gave birth??
The Gone Girl actress slayed award season with her svelte figure, but she took a more casual approach to dressing her post-baby bod in El Lay on Thursday.
Dressed in a babydoll coat, flared white dress, and white loafers, Rosamund must've been channeling her inner tween!
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