This month marks the 75th anniversary of the film classic "The Wizard of Oz." Join us as Kaye McIntyre takes a look at the popular 1900 book, The Wonderful Wizard of Oz, the 1939 film adaptation, and how it became one of the best-loved movies of American cinema. "The Wizard of Oz" opened in Hollywood on Aug. 15, 1939, and was released nationwide on Aug. 25, 1939.