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How to Produce a Short Film With a 3-⁠Person Crew

Martha Millan went from network TV sets to an indie shoot in NYC. Here’s how Celtx helped her bring Short Thin Lines to life.

Actor and producer Martha Millan leverages Celtx’s scriptwriting and pre-production tools to manage a 3-⁠person crew and an ensemble cast across NYC.

From Network TV Sets to a Lean 3-Person Indie Crew

Shooting handheld across NYC’s crowded streets, subway platforms, and unpredictable public spaces, Martha designed Short Thin Lines to embrace chaos and immediacy, letting production constraints shape its visual language. To make a tight budget work, she structured the narrative to take place over a single day—minimizing hair, makeup, and wardrobe changes and also to avoid continuity errors. Filming was streamlined into two key setups: FD Photo Studio for indoor stages, and a single-day on location for Times Square and subway exteriors.

“I was constantly shifting gears on set—jumping from producer, to caterer, to production assistant, to literally clapping the slate sticks myself right before stepping into frame to act. Shifting between ‘producer brain’ and ‘actor brain’ left no time to think, but Celtx kept production moving.”

Martha Millan, Actor & Producer

Martha Millan holding a slate marked Scene 13A Take 2 on a New York City subway platform.

Going from Script to Shoot with Integrated Pre-Production Tools

Having written the initial concept in Celtx years earlier, returning to the platform gave Martha the digital framework needed to plan a fast-moving production. As an actor-producer, respecting her cast's time was paramount. She wanted every actor to "SWF" (Start, Work, Finish) in a single day. Using Celtx’s scheduling tools, she dynamically reordered scenes based on studio availability, location constraints, and talent schedules without losing track of the master script.

Two crew members setting up a gimbal-mounted camera with a shotgun mic in Times Square.

Managing Indie Production Budgets and Set Operations

Martha wore nearly every departmental hat on this production. The one exception was casting, where actor Liza Weil (Gilmore Girls, How to Get Away with Murder) lent her talent and support during auditions. With that many roles to juggle, keeping financial track of a shoot can quickly become overwhelming. Celtx’s integrated budgeting feature became a lifesaver, tracking costs in real time across cast and crew pay, studio rentals, props, parking, and the daily Dunkin’ and DoorDash catering runs.

“Ten years ago, my pilot Thin Lines was born in Celtx, and ten years later, so was its proof of concept, Short Thin Lines. It didn’t just help me write the script; it helped me film it, and genuinely served as my digital crew.”

Martha Millan, Actor & Producer

Streamlining Post-Production Workflows from Set to Edit

The organization built during pre-production provided a crucial safety net when wrapping principal photography and transitioning to post-production. Deliverables handed off to industry veteran editor Diva Magpayo and our acclaimed sound team, supervised by Emmy winner Charlie Crutcher, were organized by shoot days alongside Celtx daily call sheets. Having a structured blueprint gave the post-production team the exact context needed to map footage back to the original script, enabling an efficient edit and streamlined post-production workflow. Colorist Mike Bonner then brought the final visual finish to the film and delivered the master file.

Martha Millan in the poster for the indie film Short Thin Lines, written with Celtx.

What’s Next for Short Thin Lines?

With principal photography wrapped and a successful crowdfunding campaign hitting over 118% of its goal on Seed&Spark, Short Thin Lines has completed post-production—gearing up for a 2027 festival run while actively developing the series expansion, Thin Lines.

Coming from a TV series with armies of crew members to a 3-person crew, Celtx gave me the digital framework to build an efficient, professional production schedule on an indie level.”
Martha MillanActor, Writer & Producer (The Cleaning Lady, The Gentlemen, Cape Fear, Short Thin Lines)

Photo credit: Eric Fischer