Copyright and Choreography
See various articles on the topic of copyright and choreography:
Copyright in Choreography in Canada
Dancing Around The Issue of Copyright Of Choreographic Works (American law)
Copyright and Choreography: What Constitutes Fixation? (American law)
So You Think You Can Steal My Dance? Copyright Protection in Choreography (American law)
Choreography and Copyright (British law)
Copyright and Copying (British law)