production, attempting to read material from the work under consideration, paired off in various combinations of two, three or more. With each of the actor's overall motivational choices evaluated, the casting panel considers both the individual actor, and the "chemistry" created from either one of the combinations set forth within the read-through. Casting calls may go out into the general public at large, sometimes referred to as a "cattle call" (a U.S. term), or open audition, in which hundreds or even thousands of performers compete for a number of roles. Casting character breakdowns, not to be confused with script breakdowns, are often provided by production agents who submit their clients to casting, which provides a brief summary of character (age, gender, race or ethnicity, situations they may be involved in). These agents and managers are positioned all over the world, and subscribe to this service that literally has an entire suite of services for just about every aspect of the breakdown, for a monthly service subscription fee. An actor may go through several casting calls before receiving a part, and even though well-known actors or actresses often still go through this very necessary process, some are privileged enough to have well-known writers, screenwriters, directors and/or producers pitch a project for their intent to be cast in a role. The well-known actor or actress often negotiates producer credit as well as very lucrative monetary compensation. Casting director / casting agencies For some major productions, the process of selecting actors for sometimes hundreds of speaking parts and roles often requires specialized staff. While the last word remains with the people in charge such as the director, producer, artistic departments and overall production team, a casting director or "CD" is in charge of most of the daily work involved in this process during pre-production. A casting director is sometimes assisted by a casting associate; productions with large numbers of extras may have their own extras casting director as well. However in all aspects of a film or television production's budget, they are all a part of the above-the-line, answering to the director as part of his or her staff. Most films use either a casting agency or a casting director to find actors to match the roles in the film, apart from the lead actors, who are often chosen by directors and producers. The job of a casting director is to know a