Mila Kunis, along with co-star Natalie Portman had to go through grueling training sessions to prepare for the movie Black Swan, which opens December 3. This celebrity news and gossip comes courtesy of MTV.com. “The preparation was, get as skinny as you possibly can as fast as you can and then learn to get en pointe while doing it,” said Kunis.

She was put on a 1,200 calorie per day diet for over five months, with no days off, except for her birthday. On that day, trainer Alexandra Blacker made her a root beer float. Even on the day of the Emmys, Kunis put in a full day of training, starting at 6 a.m. The movie, which has been generating buzz for months, is already prompting talk of Academy Awards nominations for star Kunis’ co-star Natalie Portman.