Photo: Neon

Kristen Stewart

Kristen Stewartdidn’t just have to tackle an upper crust British accent to play Princess Diana, she also had to master movement to fully embody the People’s Princess.

“We kind of danced our way through makingSpencer,” the actress, 31, tells PEOPLE in this week’s issue.

Despite decades in the spotlight, Stewart admits, “I’ve always been super intimidated and self-conscious,” so dancing has “never been my way into a party. It’s never been my way into self-expression at all.”

But emulating the Princess of Wales “opened me up in such a cool way,” shares the star, who isearning Oscar buzzfor her performance.

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princess diana

Stewart describes Princess Diana as “really obsessed with movement and dance,” and indeed the royal’s love of dance was famously dramatized in season 4 ofThe Crown, whenGolden Globe winner Emma Corrinstrapped on character shoes to re-create the princess’s 1985 duet toBilly Joel’s “Uptown Girl.”

Diana shocked her husband — and made headlines — when she twirled her way through the up-tempo jazz number in front of an audience of 2,500 at the Royal Opera House in London.

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kristen stewart

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Diana’s physical self-expression (or at least Stewart’s interpretation of it) is on display inSpencervia a montage that had Stewart quite literally dancing through filming — a daily challenge from director Pablo Larraín that the actress initially struggled to accept.

“At the end of every single day, there was 30 minutes of extra time to pick an outfit and for Pablo to pick a song in a room and just go,” she toldEntertainment Weeklyin September. “He said, ‘Because we’re not doing everything chronologically, we’re not doing a biopic, this is your chance to tell the whole story. All you need to do is inhabit the space and listen to the music and carry her with you, and everything you know about being in this place, and just see what happens. See if it comes out.'”

Spenceris out in theaters now — for more insights on Stewart’s buzzy turn as Princess Diana, pick up this week’s issue of PEOPLE!

source: people.com