Charlize Theron Jokes to Isla Fisher at Oscars: I'm Going to Punch You in the Face!

USMagazine, Monday, February 25, 2013, 2:00pm (PST)

Was Charlize Theron embarrassed by her Oscar dance moves? The Snow White and the Huntsman actress, 37, participated in Oscar host Seth MacFarlane's opening dance number for the 85th annual Academy Awards Sunday, Feb. 24, but she had a hard time accepting praise on her performance -- especially from Isla Fisher.

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An insider tells Us Weekly that while Fisher, 37, was backstage at the Dolby Theatre, she told a female friend about a funny exchange interaction she had with Theron.

"I went up to Charlize Theron and said, 'Girl, you can dance!'" Fisher recalled, according to the eyewitness. "And Charlize said, 'I'm going to punch you in the face right now!'"

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All kidding aside, the South African actress did admit to E! News that she was "sort of tricked" into participating in the ballroom dancing number with Channing Tatum. "I thought it was going to be something smaller, like he pulls me up from the audience and we do a little spin," she said. "But then he was was like, 'Rehearsals start Monday!'"

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And she didn't really enjoy the pressure it put on her. Calling the experience "completely nerve-wracking," the Oscar-winning star joked, "I thought I was going to have to wear one of my son's diapers!"

This article originally appeared on Usmagazine.com: Charlize Theron Jokes to Isla Fisher at Oscars: I'm Going to Punch You in the Face!