The Public Domain

A Motion-Capture Slasher Film Treatment
Logline: When a cursed 1930s cartoon reel is digitised, the world’s first public domain horror icon escapes her legal purgatory to murder anyone who dares trademark her image—starting with the film crew who resurrected her.

SYNOPSIS

Act I: The Chain of Title

An indie horror studio, Expired IPs Productions, is live-streaming a 48-hour "Public Domain Jam" from a decommissioned motion-capture arena. Their gimmick: shoot a slasher flick using only PD characters, Unity real-time rendering, and a £3,000 budget.

The crew:

NANCE (30s, ex-VR tech, now a jaded director) – our protagonist. Named "Nance" to avoid the "Drew" trademark.
FLEISCH (40s, pretentious showrunner, obsessed with "vintage authenticity")
MAX (20s, Unity dev, handles the live mocap pipeline)
DOT (20s, sound designer, recording foley in the arena’s echo chamber)

Fleisch unveils their star: a 1930 Dizzy Dishes 35mm reel, digitised via a janky 4K scanner. The character is BOOP—not "Betty" (trademarked), just "Boop." The design is grotesque: poodle nose, flapper dress, dead eyes. Max rigs her to a mocap actor in a grey suit. The plan: real-time slasher, rendered live, audience votes on kills.

First take: Boop’s model glitches. The mocap actor collapses, seizing. On the monitors, Boop smiles—a frame-perfect expression not in the rig. The actor’s body contorts, bones snapping in time with Boop’s dance. The stream hits 10,000 viewers. The chat spams: "That’s not mocap. That’s real."

Act II: The Cease and Desist

The arena’s power flips to backup. The exit doors seal. Dot’s audio feed picks up a 1930s jazz record—Boop-Oop-a-Doop—playing from every speaker. Fleisch, ever the auteur, is thrilled: "Practical effects! This is cinema!"

Then the first body: Max, found in the calibration bay, his face replaced by a low-poly 1930s cartoon mask, rigged with motion-capture markers that have burrowed into his skin. His Unity console shows a single command: // Trademark this, bitch.

Nance realises the truth: Boop isn’t haunting the film. She’s haunting the legal grey area. Every time Fleisch says "Betty," a fuse blows. Every time they try to modernise her design, a mocap tracker flies off its mount and impales something. Boop is enforcing her public domain status—killing anyone who tries to claim ownership.

The arena becomes a death trap themed around IP law:

The "Derivative Works" Room: A greenscreen chamber where Dot is chroma-keyed into the 1930s cartoon, flattened into a 2D cel, then sliced frame-by-frame by a rogue render farm.
The "Trademark Infringement" Corridor: Walls lined with projected garter belts and curl trademarks. Touch one, and a pneumatic piston (leftover from a VR haptic rig) punches through your chest.

Fleisch, still filming, tries to negotiate: "We’ll credit you! Public Domain! Fair use!" The arena’s PA system crackles with a 1930s voice: "You can’t copyright a voice. But you can trademark a scream."

Act III: The Perpetual Renewal

Nance is alone. The stream is at 2 million viewers. She finds the original film reel, still spinning in the scanner—burning, melting, but never stopping. The scanner’s feeding it back into itself, a perpetual copyright loop. Boop’s getting clearer with each loop, more human, more modern. She’s evolving through the public domain, absorbing every iteration that should be free.

Nance’s solution: brute-force the public domain. She hijacks Max’s Unity rig and loads every PD character from the next decade: Pluto (as "Rover"), a 1930s Blondie, even a pre-trademark Popeye (pipe, squint, no name). She mocaps them all at once, a chimera of expired IPs, each one overwriting Boop’s claim.

The climax: Nance, in the mocap suit, becomes a gestalt of 1930s cartoons. She fights Boop in a live-rendered arena, Unity lights flickering, motion-capture markers flying like shrapnel. The audience votes: "Let them both die."

Nance wins by doing the one thing Fleisch couldn’t: she open-sources the film. Live on stream, she uploads every asset—models, textures, the death scenes—to GitHub with a CC0 license. "Now you’re everyone’s," she tells Boop.

Boop stutters, glitches, and dissolves into a thousand low-res PNGs. The doors unlock. The stream ends with a 404 error.

Epilogue: Six months later, Nance is back in VR arena ops. A kid in Nebraska uploads a mod: Boop vs. The Slayer Man. It gets 50 million downloads. Fleischer’s lawyers send a cease-and-desist. The kid replies with a link to the GitHub repo and a single line: "You can’t trademark a ghost."

PRODUCTION NOTES (Operator-Friendly)

Mocap: Use your existing OptiTrack/Vicon rig. The "death by markers" gag is practical—rig markers with fishing line and pneumatic pulls.
Unity Pipeline: Real-time rendering is the gimmick. Stream it on Twitch with a 30-second delay. Use Shader Graph to make the 1930s "look" procedurally degrade as characters die.
Audio: Dot’s foley room is your arena’s echo chamber. Record everything diegetic. The jazz track is Trolley Troubles (1927, PD) pitched down.
Safety: The "pneumatic piston" is a repurposed haptic vest actuator. Keep it under 40 PSI. Have a kill switch. This is still a slasher film, Jamie.
Legal Shield: The film-within-a-film structure is your parody defence. Never say "Betty Boop" in marketing. Title it THE PUBLIC DOMAIN—generic, untrademarkable. The character is "Boop, a 1930s flapper."

CHARACTER DESIGN (The 1930 Version Only)

Boop: Poodle nose, no earrings, simple black dress. No garter (trademarked 1932). Voice is a text-to-speech 1930s radio filter, not Mae Questel’s performance.
Nance: Modern mocap suit, but the markers are practical effects—each one is a tiny LED that "activates" when Boop is near.
Fleisch: Period-accurate 1930s director’s attire, because he’s a bit of a weird one.

BUDGET BREAKDOWN

Mocap rental (your own kit): £0
Unity Asset Store (PD scans): £150
Pneumatic rigs (scrapyard): £200
Actor overtime (48-hour shoot): £1,000
Lawyer retainer (just in case): £1,650
Total: £3,000. As promised.

The Public Domain - a screen treatment for the AI Age