What it took for Emma Stone to transform into a tennis 'icon' Billie Jean King for 'Battle of the Sexes'

Get the Full StoryJonathan Leibson Getty Images

The INSIDER Summary:

Emma Stone plays real tennis icon Billie Jean King in "Battle of the Sexes."

It's the first time she has played a real person.

She said it was a "super challenging" experience.

Emma Stone stepped into some big shoes for her role in "Battle of the Sexes."

The 28-year-old actress portrays real tennis icon Billie Jean King in the biographical movie based on the 1973 tennis match between Billie Jean King and Bobby Riggs.

In an interview with The Hollywood Reporter, Stone spoke about the challenge of playing a real person for the first time.

"I've never played a real person before and it's, like, this person is an icon and an absolute badass that I could never even hope to be exactly like," Stone told the magazine.

Stone said King's involvement with the movie helped make the process "easier."

"Capturing the essence was very important to us," she said. "It was super challenging, but King was so warm and welcoming and open to all of it. She was generous with her story that it made it much easier than if she was like, 'Please don't make this movie about me, good night.'"

Fox Searchlight

In an earlier interview with Entertainment Weekly, Stone said she studied the way King spoke and moved to get her mannerisms right.

"There were all of these things that go into playing someone who really exists that I had never experienced before," she said. "It was such a thing to figure out how her hands moved, and her body’s so incredible and the way she moves within her body. I was a real creep."

"Battle of the Sexes" also features Steve Carell as Bobby Riggs. It hits theaters September 22.

Watch the trailer below:

Youtube Embed:http: www.youtube.com embed o5ykcuAS1F4Width: 800pxHeight: 450pxNOW WATCH: Here are all the major changes coming to your iPhone September 19

Share: