Walt Disney Pictures has unveiled the fourth TV spot for the upcoming magical adventure Oz: The Great and Powerful. Entertainment Weekly has also unveiled the cover for their upcoming print edition which features the Wicked Witch of the West. Despite getting a rather clear look at her face, it isn't clear if Mila Kunis' Theodora or Rachel Weisz's Evanora is this nefarious character. Take a look at the video and the magazine cover, then read on for more details from director Sam Raimi and Michelle Williams, who plays the good witch Glinda.

Oz: The Great and Powerful Entertainment Weekly Cover

Sam Raimi first spoke about his hesitation in taking on the project, due to his love for the 1939 classic The Wizard of Oz.

"The original is my favorite film of all time. I didn't want it sullied. I didn't want to be involved in a production that might trade off the goodwill of that film, so I didn't even want to read the script at first. Luckily I did. And then I realized that it wasn't at all what I thought."

Michelle Williams also spoke about how they wanted to take certain elements from The Wizard of Oz' Glinda the Good Witch, while still creating something new.

"We tried to think of what made Glinda in the original film, but we didn't want to lean too heavy-handedly on that."