4. The Lollipop Guild
All of the munchkins in the film were portrayed by a group of people who at the time were known as The Singer Midgets. They were managed by a man named Leo Singer.
Many of the Munchkin actors were Jewish and took advantage of being cast in a U.S. film to escape the Nazis. Most of them couldn’t speak English or sing, so professional singers dubbed over their voices.
5. I Can't Believe You're Not Toto Anymore
Toto was actually played by a female dog named Terry. However, at one point during production, one of the witch’s guards accidentally stepped on Terry, injuring her. Judy Garland grew very close to Terry during filming and wanted to adopt her after the film wrapped. However, Terry’s owner refused to give her up.
6. There's No Place Like Home
The character of Dorothy was named after L. Frank Baum’s niece, Dorothy Louise Gage, who died when she was only 5 months old (Baum changed her last name to Gale in the books).
Today, there’s a special stone marking Dorothy Gage’s grave.
The children’s section of the cemetery where she’s buried was renamed the Dorothy L. Gage Memorial Garden in hopes that bereaved parents would find comfort in the thought that their deceased children were with Dorothy in Oz.