Provide protection for literary, artistic, dramatic or musical works,computer programs, and sound recordings.

The exclusive right given by law... to an author, composer, designer, etc. (or his assignee) to print, publish, and sell copies of his original work.

You worked hard creating this video, so be sure to include a copyright notice. Copyrights typically come in the form of a graphic at the end of the video. It denotes ownership, requiring others to gain permission from you before they can legally use it. To see an example click here.