New Oz: The Great and the Powerful poster teases the Wicked Witch

Our exclusive poster from Sam Raimi's fairytale blockbuster 'Oz: The Great and the Powerful' gives us the first look at the Wicked Witch. But who is she?

We already know that Michelle Williams' Glinda becomes the Good Witch who will go on to help Dorothy and her friends down the Yellow Brick Road, but it's difficult to tell whether Mila Kunis or Rachel Weisz's characters ends up donning the green skin.

What do you reckon?

The prequel to the classic 'A Wonderful Wizard of Oz' the new movie tells the story of how the Wizard arrived in Oz and became the ruler. It stars James Franco as the titular Oz, Mila Kunis as Theodora, Rachel Weisz as Evanora and Michelle Williams as Glinda. Zach Braff features as the voice of Frank/Finley.

'Oz: The Great and the Powerful' is due to be released in the UK on 8 March 2013.