(Cover) - EN Showbiz - Charlize Theron is a "total b**ch" in her new movie.

The Hollywood actress plays Ravenna, the Evil Queen in upcoming fantasy film Snow White and the Huntsman. Charlize joked that she "sweetened" the wicked character, before adding that definitely wasn't the case.

"I've decided to just go really sweet with her," she told e! Online. "I don't understand why they call her the Evil Queen."

"No, she's a total b**ch!"

Charlize stars alongside Kristen Stewart and Chris Hemsworth in the highly-anticipated movie. The stunning star has had a great time on the set.

"She's been delicious," she said of her wicked character. "I've been having a lot of fun."

Charlize is also starring in Young Adult. She plays Mavis Gary in the dark comedy - a novelist with a drinking problem who returns to her hometown hoping to rekindle things with her high school sweetheart.

The blonde beauty loved her complex character.

"Oh, Mavis," she exclaimed. "She's like a gorgeous car crash that you just cannot drive away from."

Charlize was speaking at her Charlize Theron Africa outreach Project benefit which helps to fight HIV/AIDS in her native South Africa. The Oscar-winning star is famed for her humanitarian efforts, which she says are dear to her heart.

"It blows my mind when so many people are dying unnecessarily or getting infected unnecessarily when all we have to do is give them information and have them get empowered by that," she explained.

Charlize was joined by close friend and celebrity photographer Randall Slavin at the event, which showcased Slavin's Reach: 24 Portraits exhibition to benefit Charlize's charity. (C) Cover Media