Black Swan actress Mila Kunis says she looked like "Gollum" for the Darren Aronofsky film. Kunis made the comparison, in an interview accompanying her cover for Nylon's December 2010/January issue.

Kunis and Natalie Portman play rival ballet dancers in Black Swan. To prepare for the role, Mila underwent a training regimen that included cardiovascular exercise, a 1200-calorie a day diet, and ballet classes for four hours a day, seven days a week.

"It was the most intense training I've ever had in my life, and probably will have for anything. I lost 20 pounds, so I went down to 95 pounds. I weigh 117 usually, like today. I looked like Gollum," said Kunis.

Her career is likely to soar when the Aronofsky's latest film hits theatres this week on December 3rd, but Mila is not too keen on the expectations that comes with it. Although, she has been cast in Black Swan mainly because of her performance in Forgetting Sarah Marshall, Kunis says she rather have "low expectations" of her career.

"Literally, at this point, my career has been built on low expectations, and when you surpass those low expectations, you're a winner," explains Kunis, whose acting in Black Swan are getting rave reviwes from critics.

Mila Kunis received the Mastroianni Prize, for best emerging actor, for her turn in Black Swan. Now those who has been anticipating to see what the buzz around Black Swan is all about will get to find out as the film will have a limited release in select cities in the United States and Canada this week on December 3. It will also be released in the United Kingdom in February next year.