Top 10 Most Extreme Things Actors Have Done To Prepare For Roles

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5. Mila Kunis in Black Swan

Mila Kunis is a long-time friend of Portman’s while in Black Swan she plays a rival ballerina. Kunis, like Portman, had never had any professional dance training prior to being cast in the film, so she had to start from scratch to nail the role next to Portman.

In addition to grueling pain Kunis put her body through, she also said that immersing herself into the world of ballet dancers helped her learn how everyone “walks, talks and handles themselves”.

She trained for four or five hours a day, seven days a week for three months before they started shooting. Kunis also said that there was nothing sensual about her training, although ballet is often perceived as such, and she also called it “one of the most excruciating sports ever”.