Ryan Church Explains How 'Lava Planet' Became 'Star Wars: Revenge of the Sith's' Hellish Mustafar

A fascinating Blu-Ray behind-the-scenes clip with Ryan Church, concept design supervisor, explains how the design team translated Lucas' vague "Lava Planet" description into the lava drenched world of Mustafar.

Check out more behind the scenes clips on the Star Wars Blu-Ray disk and see more of Ryan Church's work at http://www.ryanchurch.com/
What do you think of the video? How would you have visualized a "lava planet?"