How long does it take to edit a documentary? (Real numbers)
Realistic editing times for documentaries by length and style, where the hours actually go, and how templates plus AI sourcing cut a 40-hour edit to an afternoon.
Ask a documentary editor how long an edit takes and the honest answer is "it depends", followed by a number much larger than clients expect. Here are the real ranges.
Editing time by type of documentary
| Type | Hours per finished minute | 10-minute film | 30-minute film |
|---|---|---|---|
| Archive-driven, narrated (history, science) | 2–4 h | 20–40 h | 60–120 h |
| Interview-driven (talking heads + b-roll) | 3–5 h | 30–50 h | 90–150 h |
| Map-heavy explainer (geopolitics) | 3–4 h | 30–40 h | 90–120 h |
| Fast video essay (screen recordings, memes) | 1–2 h | 10–20 h | 30–60 h |
These assume the script is finished. Add research and scripting on top: 5–15 hours for a 10-minute film, often more.
Where the hours actually go
For a 10-minute archive documentary, a typical breakdown:
- Footage research and licensing: 8–12 hours. Searching archives, checking rights, downloading, logging. This is the part nobody budgets for and everyone underestimates.
- Narration recording and cleanup: 1–2 hours.
- Assembly (pictures to voice): 6–10 hours.
- Maps and graphics: 3–6 hours. Historical borders are slow to draw correctly.
- Sound design and music: 2–4 hours.
- Colour and titles: 1–2 hours.
- Review rounds: 2–4 hours.
Notice that the creative decisions (assembly, sound) are less than half. The rest is sourcing and mechanics.
What AI actually removes
Sourcing and mechanics are exactly what AI is good at. In Glisse:
- Footage research becomes a licensed search matched to each narration line, with rights checked at search time.
- Maps are generated with the right borders for the year, with camera moves between the places named.
- Narration is generated in a consistent voice, timed to the word.
- Re-cuts after a script change happen automatically, because the edit is anchored to the voice.
That removes 20–30 of the 40 hours. The remaining decisions, the taste, come from the editor's template rather than from you sitting at a timeline.
Realistic timeline with a template
- Script: 1–2 hours (or an hour with an AI draft you rewrite).
- Pick a template, describe the topic, generate: 30–60 minutes.
- Review and request changes: 1–2 hours.
- Export: minutes.
An afternoon for a 10-minute film, a day for 30 minutes. The film is only as good as the template and the script, which is why both matter more than the tool.
FAQ
How long does it take to edit a 10-minute documentary?
By hand, 20 to 40 hours after the script is written. With an editor's template and AI sourcing, an afternoon.
Why does documentary editing take so long?
Footage research and rights clearance take as long as the creative edit. Every archive clip has to be found, checked and logged before it can be cut.
Does AI make documentary editing faster?
Yes, for sourcing, maps, narration and re-cuts. It doesn't make the taste decisions faster, which is why Glisse pairs AI with templates made by editors.
Make documentaries with an editor's taste
Glisse turns a real editor's style into a template. Describe your topic, and AI adapts it into a finished long-form film: licensed archive footage, maps, narration and music. Editors earn every time their template is used.
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