Tuesday, June 19, 2012 2:29 PM PT
Warner Bros.: All References to 'Wizard Of Oz' Are Copyrighted

     The original book, written by L. Frank Baum, was published in 1900 and is in the public domain. The popular movie version, in which Warner Bros. holds the copyright, came out in 1939. This does lead to some interesting copyright questions, and a few lawsuits. Read more from Techdirt.