You're probably talking about the book Wicked by Gregory McGuire, which tells the story from the Wicked Witch of the West's point of view.
If you mean the original Oz books by L Frank Baum, the four witches appear in The Wonderful Wizard of Oz (counting the Wicked Witch of the East's feet, since that's the only way she ever appears).
It is a book and a Broadway show, it has not been made into a movie yet, but the name is Wicked.
The Unknown Witches of Oz was created in 2000.
The Unknown Witches of Oz has 240 pages.
GlendaAnother answer- it's spelled Glinda
The Good Witches of the North and of the South and the Wicked Witches of the East and of the West are the witches in the 1900 book edition of The Wizard of Oz. Glinda dwells in the red, southern Quadling Country for having deposed the unnamed Wicked Witch of the South while Locasta, also known as Tattypoo, inhabits the northern, purple Gillikin Country for having deposed Mombi, the Wicked Witch of the North. The unnamed Wicked Witches of the East and of the West respectively live in the Land of Oz's blue Munchkin Country and yellow Winkie Country.
Dorothy and the Witches of Oz - 2012 is rated/received certificates of: USA:PG
She Is A Lesbian
The Witches of Oz - 2011 is rated/received certificates of: Netherlands:12 USA:TV-14 (TV)
Dorothy and the Witches of Oz - 2012 was released on: USA: 17 February 2012 (limited)
I dont no what all of them wore....but one of them wore pink
Green
The Witches of Oz - 2011 - 2011-07-06 was released on: USA: 6 July 2011