Also Known As: AD, First Assistant Director, 1st Assistant Director, 2nd Assistant Director. An assistant director's duties include tracking the progress of filming versus the production schedule, and preparing call sheets. A First Assistant Director is responsible for the preparation of the shooting schedule and script breakdown used to plan the shooting of a film or television show. The AD works directly with the Director to manage of the minute to minute operations on the set during the process of filming, as well as co-ordinating the necessary communication of details of future operations as the filming progresses. Other duties include tracking the progress of filming versus the production schedule, observing all rules related to union crafts, labour contracts and location agreements, maintaining safety on the working set, and working with the Unit Manager to keep operational costs within the budgeted plan. A Second Assistant Director is responsible for information distribution and reporting, cast notification and preparations during the shooting process, recording of all data relative to the working hours of the crew and cast, management of the background cast (atmosphere or "extras"), preparation of call sheets, production reports,and other documentation. When needed, the Second Assistant Director can assume the duties of the First Assistant Director on a temporary basis.