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  • ACTION! – The command from the director for the scene to begin. It also means that the camera is rolling.
  • A.D. – The Assistant Director.
  • AD LIB – Extemporaneous delivery without relying on a prepared script.
  • ADR – Automated Dialogue Replacement. Dialogue added to a scene in post production. Also called “looping”.
  • AEA – Actors’ Equity Association; also called “Equity”. SAG’s sister union which represents stage actors. See also BAE, CAE and MEAA.
  • AFI – The American Film Institute
  • A.C.C.T. – Association of Canadian Craftspeople
  • ACTRA – Alliance of Canadian Cinema Television and Radio Artist
  • AFTRA – American Federation of Television and Radio Artists. Represents radio artists and news broadcasters, and, in earlier times, television performers. In more recent times, however, television performers may be represented by either AFTRA or SAG, depending on the producer’s contract. Discussions about merging the two organizations have been ongoing for several decades; recent Television & Film and Commercial Contracts have been jointly negotiated.
  • AGMA – American Guild of Musical Artists
  • AGVA – American Guild of Variety Artists
  • AMPTP – Alliance of Motion Picture and Television Producers
  • ART DIRECTOR – Person who conceives and designs the sets.
  • ATA - Association of Talent Agents
  • AUDITION – A tryout for a film, TV or stage role. Usually auditions involving reading from the script, but can also require improvisation.
  • AVAIL – A courtesy situation extended by performer or agent to a producer indicating availability to work a certain job. Avails have no legal or contractual status.

Film Terms Glossary –San Antonio Film Academy

  • Ambient Light: General room light.
  • Ambient noise:General sound in a given are which is peculiar to that space (room tone).
  • Aperture: A variable opening inside a lens that regulates the amount of light reaching the sensor. Also known as an iris.
  • Apple Box: A box built of a strong wood which is capable of supporting weight. These may be of various sizes. Small apple boxes are also called ‘pancakes’ because it is nearly flat.
  • ASA (ISO): The exposure index or speed rating of film or a digital sensor.
  • Associate Producer: This is normally the person who acts as the go between for production company and the various personnel involved in the post production process.