The scope of copyrightable subject matter is broad. Section 102 of the Copyright Act (17 U.S.C. 102.) defines eight categories of works of authorship, covering a wide variety of creative expression. Copyrightable works include literary works, musical works, and dramatic works. Pantomime and choreography are copyrightable. Copyrightable subject matter extends to pictorial, graphic, and sculptural works. Movies and audiovisual works are included, as are sound recordings and architectural works....