Nel fantastico mondo di Oz

In order to include the ruby slippers as part of this film, Disney had to pay royalties to Metro-Goldwyn-Mayer (MGM), the studio which had produced Il mago di Oz (1939). The ruby slippers did not appear in L. Frank Baum's original novel "The Wonderful Wizard of Oz"; they were invented for the 1939 film to better take advantage of the newly developed Technicolor process. Interestingly enough, in "The Wonderful Wizard of Oz," Dorothy wore a pair of magical silver shoes which were lost when she used them to return to Kansas. In the subsequent novel "Ozma of Oz," one of the books on which this film is based, Dorothy and her friends meet the Nome King who possesses a magical belt with properties similar to those of the silver shoes. Early drafts of the script for Return to Oz reflect this, with the Nome King cutting up the ruby slippers to make his magical ruby belt.

Tik-Tok's thinking mechanism is activated by winding the key under his left arm, and his talking is activated by winding the one under his right arm. However, when he asks Dorothy to wind his thinking key before entering the ornament room, she winds the one under his right arm.

When it was aired on the Disney channel, the following were cut: When "Ozma" unties Dorothy from the bed in the doctor's room, the line where she tells Dorothy that the screaming patients are locked in the cellar is cut. When Dorothy first visits Mombi, much is cut. A lot of shots of the heads behind the glass are cut, and so is a lot of footage when Mombi puts on her head. Because of this, a line is cut where she asks Dorothy how she looks, and Dorothy tells her she looks beautiful. In the TV version, it cuts straight to the line, "And just who might you be?" When Mombi wakes up, many shots of the screaming heads and EVERY shot of the headless Mombi trying to get Dorothy is cut. A few seconds of footage of the Nome King's death are cut, including when his eye turns to stone, and some of the "poison" shots.

Featured in At the Movies: Secret Admirer/The Goonies/Prizzi's Honor/Movers and Shakers (1985)