ET on the 'Oz The Great and Powerful' Set!

Oz The Great and Powerful doesn't land in theaters until next year, and before we premiere the film's first exciting trailer this Thursday afternoon on ETonline, we exclusively have the first footage from the set! ET's Mark Steines spent time exploring the incredible, imaginative production of the Sam Raimi film -- with 28 different sets occupying seven sound stages in Detroit -- and talked with Mila Kunis, who plays one of the film's three witches, and Oz himself, James Franco! Related: 'Oz The