I’m Simon Mackenzie, a documentary and branded doc editor, focused on shaping honest, story-led films.

I work with broadcasters, streamers and brands who are making documentaries in a changing market and need stories that connect quickly without feeling forced. I create films that are clear, engaging and emotionally satisfying - and that hold an audience all the way through.

I cut both long-form and short-form documentaries, including branded films. That might mean weeks of observational rushes or a tightly produced branded film with a clear message. Either way, I focus on structure, pacing and emotional payoff — finding what really matters in the footage and shaping it into a story people want to stick with.

I’m comfortable when the footage is messy, the brief evolves or the story isn’t obvious at first. That’s often where the real editorial work begins — interrogating the material, making confident decisions and maintaining momentum when a project risks losing direction.

Over the last decade I’ve worked on documentaries and factual films for Discovery+, Amazon Prime, Channel 4, Fox and Viacom Studios, as well as branded docs for Jamie Oliver, ZOE and VOY.

I’m a member of British Film Editors (BFE) and I’m known for being calm, collaborative and reliable — someone clients trust with both the story and the process.

Based just outside London and available for remote or in-person collaboration.

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What I offer: 

Branded documentary films that don’t feel like ads.

Story-led long-form and short-form documentary editing.

Problem-solving that keeps projects moving from rough cut to final delivery.

Want to chat about a project? Get in touch