Marisa Tomei
Don't get me wrong. I am always going to think, "I wish this were a dress." But this is kind of groovy, in a Sexy Cocktail Pajamas kind of way, and I think she has the right attitude to pull it off. It feels less "OMG THIS IS A JUMPSUIT" and more, "yes, sometimes I care to model a jumpsuit."
Bonnie Wright
Bonnie went to the Elton John party, while Lily Collins -- who is now dating Bonnie's ex-fiance Jamie Campbell Bower (or WAS, since he didn't seem to be there) -- went to the Vanity Fair, presumably to prevent Bonnie from Avada Kedavra'ing her. (In my imagination, Bonnie is pretty irritated that JCB and LC were papped being all lovely-dovey like immediately after their breakup; obviously, this is all just RAMPANT CATTY SPECULATION, which is what I do best.) I think this outfit is totally weird and wrong for the event, but it IS perfect if you're going over to Betty Draper's house for finger sandwiches.
Bonnie Wright
At least we can rest assured she's not heartbroken.