Ellen Page has tied the knot with her partner.

The 30-year-old, who rose to fame for her breakthrough role in coming of age indie film Juno, married Emma Portner.

Page surprised fans after announcing she wed Portner - who teaches contemporary jazz at the Broadway Dance Centre in New York – on Instagram.

“Can’t believe I get to call this extraordinary woman my wife,” the actor wrote on the social media site on Wednesday.

Portner also announced the news on her own Instagram page, saying: “Ellen Page I LOVE YOU.”

Both of their posts included a photo of Page and Portner’s almost identical looking hands adorned with their respective wedding bands gently touching.

Portner, originally from Ottawa in Ontario, has choreographed for Justin Bieber.

“Her performance and choreography appear in Justin Bieber’s ‘Life Is Worth Living’ video as well as on his Purpose World Tour,” her bio on the Broadway Dance Centre website states.

(Instagram / Ellen Page (Instagram / Ellen Page)

Dance Spirit magazine hails Portner as one of 13 young choreographers who are "changing the dance world” while The New York Times labels her “beguiling”.

Page, who has also starred in the X-Men films, Inception, and Whip It, has shared a number of interpretive dance videos with Portner. The happy couple have also sometimes shared cover songs together.

Page kept her sexuality a secret for years before finally deciding to come out at a Human Rights Campaign event for counsellors of young LGBT people in Las Vegas in February 2014.

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The actor admitted she lived something of a double life before coming out. “I felt, let’s just please be done with this chapter of discomfort and sadness and anxiety, and hurting my relationships, and all those things that come with it,” she said.

In the end, feelings of doubt and guilt meant Page could no longer keep her sexuality private.

“I felt guilty for not being a visible person for the community, and for having the privilege that I had and not using it. I had got to the point where I was telling myself, you know, you should feel guilty about this.

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“I was an active participant in an element of Hollywood that is gross. I would never judge somebody else for not coming out, but for me, personally, it did start to feel like a moral imperative.”

In a candid speech which received two standing ovations, she explained she was driven by a “personal obligation” and “social responsibility”.