Kunis and Portman trained for months before they began shooting, and both dropped a huge amount of weight to look like real ballerinas.
The Family Guy star has now revealed the tough preparation has left her facing a medical procedure to remove marks on her body caused by hours of practising lifts with a male dancer.
She tells Britain's GQ magazine, "I thought they would go away, but they haven't, so I'm getting them removed. It's kind of awesome."
Source: contactmusic
