Rainbow Road to Oz

Rainbow Road to Oz was a proposed, but never finished, Walt Disney Studios live-action about characters in the Land of Oz and inspired by L. Frank Baum's Oz books.

Plot
Unknown

Why It Was Cancelled
It is theorized that the reason was because Disney failed to develop a satisfactory script and the popularity of the MGM adaptation of The Wizard of Oz represented potential insurmountable comparisons.

Result
It was replaced with a new adaptation of Babes in Toyland. However, Disney did eventually create two adaptations: Return to Oz in 1985, and Oz the Great and Powerful in 2013, the latter of which currently has a sequel in development.