Movie rights
rights to produce a film as a derivative work
Movie rights are rights under copyright law to produce a movie as a derivative work of a given item of intellectual property. In the US law, these rights belong to the holderf of the copyright, who may sell (or "option") them to someone in the movie industry—usually a producer or director, or maybe sometimes a specialist of such propeties—who will then try to gather industry professionals, and secure the financial backing necessary to convert the property into a movie.