Film rights are rights under copyright law to produce a film as a derivative work of a given item of intellectual property. In US law, these rights belong to the holder of the copyright, who may sell (or "option") them to someone in the film industry—usually a producer or director, or sometimes a specialist broker of such properties—who will then try to gather industry professionals and secure the financial backing necessary to convert the property into a film. Such rights differ from the right to commercially exhibit a finished motion picture, which rights are usually referred to as "exhibition rights" or "public-performance rights".