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Education / Assistant directors

Third Assistant Director

Keep the floor connected to the wider plan.

Progression role

The overview

What does the role do?

The third AD supports the first AD on set, coordinating information and practical activity as filming progresses.

They help communicate changes, organise background action where assigned and anticipate practical problems around the set. The second AD depends on accurate updates from the floor. A third AD therefore needs to understand both the immediate scene and what other people must prepare next.

What might a working day look like?

Expect continuous communication with the first and second ADs, supporting artists and the floor team.

Typical responsibilities

  • Communicate the progress of filming and changes to plans.
  • Coordinate background action when allocated.
  • Support set access and practical arrangements with locations.

Your route in

Getting started

Build experience within the floor team before taking responsibility for coordinating others.

  1. Understand background continuity

    Watch a scene and map where background performers move. Consider how the action repeats across camera angles.

  2. Learn to brief clearly

    Write instructions that explain the action, the cue and what to do at the end. Practise checking understanding.

  3. Develop through floor work

    Ask for supervised opportunities to coordinate tasks while keeping your AD supervisor informed.

Where could it lead?

Floor runner or AD trainee experience may lead to third AD, with later routes into other AD grades.

Try it yourself

A small step into the role.

Design background action for a café scene with six performers. Make a simple map, three repeatable actions and a briefing.

Check your work

Check that performers know their cue, their route and how to repeat the action for another take.

A London Film Club practice prompt

This is an introduction to UK film and scripted TV, rather than a complete job specification. Grades and responsibilities vary by production.

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