I've been lucky enough to meet Sarah Paulson several times, but I'm not sure why she looks so odd in this picture.
I mean, obviously she was kind of over the whole picture thing, but normally she's super nice and accommodating. Granted, she was still accommodating, but it's just not the usual cute smile. I'll find some pics and show you the difference. Well, someday (kinda busy with the whole wedding stuff right now).