A classification method and system for possible content alteration of a media work may include criteria regarding content that is feasible for alteration. Such criteria may be maintained in records that are accessible to an interested party. Some embodiments may include a record of authorization rights applicable to a possible content alteration. Some embodiment implementations may include a derivative version of the media work wherein substitute content, such as an alterable component element having one or more designated aspects, is associated with a real-world entity or person.