SPOILER ALERT: While the identity of the Wicked Witch has been shrouded in mystery in the advertising for "Oz the Great and Powerful," the actress playing her was open about her part in a recent press junket for the film.

Keep reading to find out why she was nervous about taking the role and what it was like to play such a legendary character ... but be warned, we will be naming her!


In Disney's new "Oz the Great and Powerful," we not only get to see how a magician from Kansas becomes the Wizard of Oz ... but also explore the origins of one of the greatest villains in film history: The Wicked Witch of the West.

And following in Margaret Hamilton's frightening footsteps is Mila Kunis, who was definitely scared about going green.

"It’s damned if you do, damned if you don’t," she says of taking on the role. "I’d be lying if I told you that it wasn’t incredibly frightening ... she [Hamilton] was phenomenal and did create such an iconic character for going on eighty years now. I wasn’t gonna touch it."

The actress says she didn't rewatch the original 1939 film after she was cast in the role, she wanted to make it her own -- something that was alleviated by a sexier costume and a new backstory.

"I didn’t want to ruin it and I didn’t want to re-create it and I didn’t want to re-interpret it. And so in order for me to wrap my head around it, I had to make sense of her origin," she adds.

So, what is the Wicked Witch's origin story?

At the start of the film, Mila is introduced to the audience as Theodora, a naive witch with an aversion to water who falls head over heels for James Franco's scheming Oz.

"And then she gets her heart broken and probably doesn't have the emotional tools of dealing with heartache," says Kunis.

With the help of her equally evil sister, Theodora is transformed from wide-eyed innocent to candy apple-green woman scorned.

"I honestly viewed her as just a normal girl who gets her heart broken, who just happens to be a witch that can fly," she says.

See Mila take flight when "Oz the Great and Powerful" hits theaters this Friday.

Want more Mila? Click here to watch a hilarious BBC Radio 1 interview with the star that went completely off the rails ... in the best way possible.

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