This document defines the titles and roles of various positions within a film production. A production company provides the physical basis for the film. The director controls the artistic and dramatic aspects of the film and guides the cast and crew. The casting director selects actors for the roles. Producers plan and coordinate various production aspects like financing. A co-producer assists the producer. A music director creates scores to match the emotion in scenes. An editor works with the director to ensure the story flows cohesively. A director of photography achieves artistic and technical decisions related to the camera and image. An executive producer may be involved in management, accounting, or legal issues.