"Wicked's" director and costume designer say why Dorothy's ruby red slippers from "The Wizard of Oz" are silver in "Wicked."

The ruby slippers Judy Garland wore in the 1939 classic "The Wizard of Oz" have become nearly as iconic as the film itself. But in the upcoming film adaptation of the Broadway hit "Wicked," sharp-eyed fans noticed a shift: Nessarose's magical shoes are silver instead of ruby red.

Only four pairs made for the 1939 film still survive and those on sale have belonged to a collector since 1970

Dorothy’s ruby slippers from The Wizard of Oz remain the most iconic pair of footwear in cinema history. The shoes, worn by Judy Garland in the original 1939 film, have been auctioned off for astronomical prices several times over the last eight decades.