The document defines several roles in film production including actor, assistant director, boom operator, costume designer, editor, production designer, and sound editor. The assistant director assists the director and may take their place if absent. The boom operator manages the microphone near actors during filming while keeping it out of frame. The costume designer designs and creates all costumes worn on screen. The editor works with the director to piece together the final edited film. The production designer designs the visual appearance and sets of a production. The sound editor creatively mixes and adjusts the soundtrack.