And to the left is why: She was hanging on Jay-Z's back, which is really not something anyone is allowed to do, ever. Kirke was eventually removed from the shoot and escorted out of the gallery ("kicking and begging," according to a source.) And then they put her in the video, because there are only so many Brooklyn-famous actresses and you take what you can get.
Update: Mark Romanek (who directed the video) denies the Daily News report. "I hope she doesn't mind me saying so, but these absurd rumors about Jemima Kirke's behavior at the PICASSO BABY shoot are utter bullshit."