Oprah Winfrey, Reese Witherspoon, and Mindy Kaling mingle with locals in Wanaka

The three Hollywood superstars have been reportedly mixing and mingling with a group of locals at a bar in Wanaka.

They are over here with about 20 other cast members shooting Disney's new film, 'A Wrinkle In Time', and they stopped by Francesca's Italian Kitchen for dinner, and then went to the Gin and Rasberry cocktail bar for a bit of a boogie.

They were spotted by a group of Wanaka mums on a rare night out, and got chatting with the stars.

"We wanted to welcome Oprah to Wanaka, and introduced ourselves as locals," Knight said.

"She was incredibly warm and humble, holding our hands and thanking us graciously with a warm smile."

Knight said the queen of day-time TV was very beautiful, and "had a calm and lovely energy about her."

The pair then danced next to Reese as she danced and sang along to "New York" by Alicia Keys.

"Reese was so sweet, and obviously loved the song, singing all the words," Knight said.

Voza said Winfrey said she had loved Wanaka and gave it "a 14 out of 10".

Yesterday, Winfrey took to social media to share her love for New Zealand.

She posted nippets of a chopper flight over Lake Hawea and cloud covered mountain peaks.

During one clip she shouts: "It's a gorgeous day New Zealand, I love you."

"Amazing, I love it, that's where we shot."