The 1999, Russian two-part animated television adaptation of L. Frank Baum, Adventures in the Emerald City: Silver Shoes. Itís mostly based on Baum but includes several elements from the "Magic Land" books. A two part sequel, Adventures in the Emerald City: Princess Ozma, adapted Baumís Land of Oz.
The 2007 Sci Fi Channel six hour, three-part miniseries Tin Man, a re-imagining and continuation of the classic story set years after the events of the original Wonderful Wizard of Oz.
The 2011 miniseries The Witches Of Oz by Leigh Scott of The Asylum fame, in which a modern-day Dorothy Gale discovers that her best-selling novels are in fact inspired by her own supressed memories of her adventures in Oz.
Many stage musicals are based on the Oz books, with the first ones written by Baum himself; later ones include:
A made-for-television biopic, The Dreamer of Oz: The L. Frank Baum Story, was made in 1990 and told the story of how the Oz books came to be. The cast included John Ritter as Baum and Rue McClanahan as his suffragette mother-in-law Matilda Gage. This movie is included as a bonus feature on the 2009 DVD and Blu-Ray releases of the 1939 adaptation.
Tom and Jerry and The Wizard of Oz, a 2011 Direct-to-Video animated feature, is a Twice Told Tale version of the 1939 film that adds the battling cat and mouse to the story. (The same company holds the rights to both the cartoon characters and the movie.)
Tales of the Magic Land, a (very free) Russian translation of the first book made by Alexander Melentyevich Volkov in 1939 that spun off into its own book series.
An audio adaptation of "The Wonderful Wizard of Oz" by the Children's Museum of Los Angeles for the book's centennial, with Harry Anderson, Rene Auberjonois, Annette Bening, Phyllis Diller, Joanna Gleason, John Goodman, Robert Guillaume, Mark Hamill, Maurice La Marche, Michael Learned, Mako, Phil Proctor, Nestor Serrano and Michelle Trachtenberg, with an afterword by Ray Bradbury.
A 2014 fully computer-animated feature film called Legends of Oz: Dorothy's Return was made by Claris and Summertime Entertainment and animated by Prana Studios (the "Tinkerbell" series), as a sequel to both the 1939 film and a few of the books and based on a book written by L. Frank Baum's great-grandson.