Update: Thanks to @Lindzspice who confirmed that this is actually from Kristen's interview on Conan - makes much more sense! How did I miss it?!
Of course you do ;)
I don't know where @WannaBeBritish found this, or if it's just a really convincing fake, but this potential audio snippet of Kristen's English accent for Snow White and the Huntsman has been floating around the Twinternet...
What do you think?