I chose this video on the subject of copyright to share. At a copyright workshop several years ago, Ruth Dukelow from the Michigan Library Consortium gave us the background on the changes in the copyright act which prolonged the length of time things can be copyrighted for. A chief culprit was the Disney Company whose big moneymaker Mickey Mouse was nearing the end of copyright. They didn't want their cash cow to go into the public domain and so we all pay the consequences.
This clever but rather long video uses clips within copyright to make a point. Watching it is kind of choppy, but someone put a lot of time into making it.