Becoming a third assistant director (3rd AD) is one of the most practical entry points into the assistant directing ladder on professional film and TV sets. It’s where you learn to manage background actors, keep communication flowing, and support the first and second ADs – all skills that can eventually lead to work on major productions, including Hollywood films and high-end series in the UK, USA, and Canada.
What a Third Assistant Director actually does
The Third Assistant Director is the on‑set organiser for background action and communication, working under the 1st and 2nd AD.
Core responsibilities typically include:
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Background/extra management
Organising extras: where they wait, when they’re needed, how they enter and exit scenes, and ensuring they understand the action. -
Communication between set and base
Passing information from the 1st AD to extras and sometimes to departments like costume and makeup, helping keep everyone in sync. -
Lock‑ups and crowd control
Managing “lock‑ups” to keep the set quiet and secure during takes, controlling pedestrian or crew movement in sensitive areas. -
On‑set paperwork and support
Helping distribute sides (scene pages), updating background counts, and supporting the 2nd AD with any on‑the‑day changes.
In short, the 3rd AD is the front‑line organiser of everything around the camera, especially when many people are on set.
Step 1: Understand the assistant director ladder
The Third Assistant Director is part of a clear career progression:
- Production Assistant (PA)/Runner – entry‑level role handling general tasks and set support.
- Third Assistant Director (3rd AD) – focuses on background performers, lock‑ups and communication.
- Second Assistant Director (2nd AD) – handles call sheets, cast logistics and base‑to‑set coordination.
- First Assistant Director (1st AD) – runs the set, the shooting schedule and safety.
Knowing this ladder helps you see where 3rd AD fits and what skills you’re building for future steps.
Step 2: Build core skills for a Third Assistant Director
To succeed as a 3rd AD, you need a mix of practical and interpersonal skills.
Key competencies:
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Communication and clarity
Giving extras and crew simple, clear instructions; repeating information consistently throughout the day. -
People management
Keeping background performers organised, motivated and professional—even during long waits. -
Situational awareness
Always knowing what’s happening on set: when a take is rolling, when it’s safe to move, where noise needs to be controlled. -
Calm under pressure
Managing large groups, unexpected changes, and tight timeframes without showing panic. -
Basic understanding of set etiquette
Knowing when to speak up and when to stay quiet, how to move on set safely, and who to report to.
You can develop many of these skills through theatre, live events, student films and even customer‑facing jobs that involve crowd management.
Step 3: Get entry‑level experience – start as a PA or on small sets
Most 3rd ADs begin as Production Assistants (PAs) or runners:
- On student films and shorts, you may cover both PA and 3rd AD responsibilities.
- On independent features and commercials, you might first be a PA, then step into a 3rd AD role once you’ve shown reliability.
- On larger TV series and studio features, the title “3rd AD” is more formal, and you’ll work under experienced 1st and 2nd ADs.
Aim to:
- Work on as many sets as possible, even small ones, to learn patterns and language.
- Watch how more senior ADs handle background, timing and communication.
- Volunteer for background organisation tasks—these are core 3rd AD activities.
Step 4: Learn the basics of scheduling and paperwork
While 3rd ADs are mostly focused on on‑set action, understanding the paperwork helps you see the bigger picture.
Documents to be familiar with:
- Script breakdowns – how scenes are broken into elements (cast, extras, props, locations).
- Shooting schedules – how scenes are arranged across days and locations.
- Call sheets – daily “maps” of who needs to be where, when, and for what.
Even if you’re not writing these documents yet:
- Read call sheets thoroughly before each shoot.
- Note how extras and background needs are listed.
- Ask the 2nd AD about how changes are reflected in updated paperwork.
This knowledge will make you more effective in the role and prepare you for future progression.
Step 5: Consider formal training – film schools in the UK, USA and Canada
Film schools can’t guarantee you a job as a 3rd AD, but they can give you structured practice on sets and introduce you to the production side.
Film schools in the UK
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National Film and Television School (NFTS), Beaconsfield
Known for production and directing training that reflects professional workflows; students often rotate through assistant directing roles. -
London Film School (LFS), London
Practical filmmaking programmes where you experience different set roles, including AD support. -
MetFilm School (London and Leeds)
Industry‑focused courses with many hands‑on shoots; ideal for practising background management and set etiquette.
UK university programmes in film production (Westminster, Goldsmiths, Edinburgh Napier and others) also give you opportunities to work as an informal 3rd AD on student sets.
Film schools in the USA
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USC School of Cinematic Arts, Los Angeles
Production courses are closely aligned with Hollywood practices, including set operations and AD collaboration. -
AFI Conservatory, Los Angeles
Advanced training focused on directing and producing; great exposure to how professional AD teams function. -
NYU Tisch School of the Arts, New York
Strong production culture where students fill AD roles on numerous projects.
Other US schools like UCLA, Chapman University and Columbia University offer film programmes with many set‑based exercises that mirror real production environments.
Film schools in Canada
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Vancouver Film School (VFS), Vancouver
Intensive One‑Year Film Production programmes where students experience the full production process, including AD duties. -
Toronto Metropolitan University (TMU), Toronto
Film programmes blending theory and practice; frequent productions where AD‑style roles are needed. -
Concordia University, Montreal
Film Production that emphasises collaborative set work, letting you practise organisational roles.
Studying in major hubs like London, Los Angeles, Vancouver or Toronto can also place you near professional sets and entry‑level job opportunities.
Step 6: Theatre schools – learning crowd and performer management
Theatre is a surprisingly powerful training ground for future 3rd ADs, especially for managing people and timing.
Theatre schools in the UK
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RADA (Royal Academy of Dramatic Art)
Training in directing and stage management builds skills in organising performers, cues and backstage flow. -
LAMDA (London Academy of Music & Dramatic Art)
Emphasis on performance and production; stage management roles mirror assistant director tasks. -
Royal Central School of Speech and Drama, London
Theatre practice and production courses teach organisation, communication and ensemble coordination.
Theatre programmes in the USA
University drama departments with strong stage management and directing focus include:
- Yale School of Drama
- Carnegie Mellon University School of Drama
- Columbia University’s theatre programs
- UC San Diego Theatre & Dance
These programmes teach how to run complex live productions, which directly translates into managing extras and timings on film sets.
Theatre schools in Canada
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National Theatre School of Canada, Montreal
Directing and production streams emphasise rehearsal schedules, cast communication and show calls. - University drama departments (e.g. York University, University of Toronto)
Often include stage management roles that train you to coordinate people, spaces and timings.
If you enjoy working face‑to‑face with performers, theatre training can significantly strengthen your ability to run background on set.
Step 7: Understand Hollywood and international set norms
In Hollywood and other major centres, Third Assistant Directors operate within specific expectations and, often, union systems.
Points to research:
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Standard terminology and etiquette
Knowing the language used by AD teams on US, UK and Canadian sets (e.g. “lock‑up”, “background action”, “rolling”). -
Union structures and guidelines
In the USA, assistant directors often work under the Directors Guild of America (DGA); entry requirements and titles may vary. -
Safety practices
Procedures for crowd management, stunt proximity, children on set, and working in public spaces.
Being familiar with these norms early will help you integrate smoothly if you aim to work in Hollywood‑style productions.
Step 8: Grow your network and reputation
As with all assistant directing roles, the 3rd AD career is heavily network‑based.
To build a strong profile:
- Be consistently reliable: show up on time, prepared, and ready to work.
- Keep your attitude professional and calm, even with large or restless groups of extras.
- Treat every department—costume, makeup, transport, locations—as partners.
- Follow up with people you’ve worked with; maintain a simple contact list of directors, ADs and producers.
Many future jobs will come from word of mouth—being the 3rd AD who keeps things organised and respectful is your best advertisement.
Step 9: Develop a sustainable leadership style
Even at the 3rd AD level, your leadership style matters.
Focus on:
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Clarity without harshness
Giving direct instructions without being rude or dismissive. -
Empathy
Understanding that extras and crew may be tired or confused; patience goes a long way. -
Boundaries
Maintaining professionalism, especially when managing large groups and long days.
A balanced approach keeps background talent cooperative and the crew supportive, which helps you—and the whole AD team—succeed.
Step 10: Keep learning and aim upward
Third Assistant Director is a step, not a destination.
Plan to:
- Learn from every 1st and 2nd AD you work with: ask questions, observe how they handle schedules and crises.
- Gradually take on more responsibility—maybe helping draft parts of call sheets or managing extra logistics more autonomously.
- Move into 2nd AD roles on smaller projects once you’re confident with paperwork and cast management.
Continuous learning—through workshops, reading, and set experience—will help you transition from 3rd AD to higher roles, and eventually to major projects in Hollywood, the UK or Canadian hubs.
If you are a filmmaker or just an aspiring one, you can learn filmmaking by purchasing this book SHOW, DON’T TELL, available in different formats: ebook, paperback, and hardcover. Check out the website and get it from Amazon or Barnes & Noble.
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