Actress MILA KUNIS has devoted her life to ballet to prepare for her role as a dancer in upcoming thriller BLACK SWAN.

The 26 year old will star alongside Natalie Portman as rival ballerinas in Darren Aronofsky’s dark new picture.

Kunis has already begun a rigorous traning routine to help her perfect her pirouettes – and she admits dance is taking over her life.

She tells Fox News, “I’ve been studying for the past month, seven days a week, four to five hours a day of doing ballet, cardio and pilates and I have two more months before choreography begins.

“This ballet I’m doing you can’t fake it. Your body has to be structured differently, your hips have to be turned out, your shoulders have to be turned in, everything in your body is not natural, so I’m learning everyday.”

The new film reportedly features a steamy same-sex love scene between the two leading ladies.