Based on a True Story
Based on a True Story
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Based on a True Story

Original Native Title: D'après une histoire vraie (fr)

Audio Tracks:French

Delphine is the author of an autobiographical novel that has become a bestseller. Exhausted by the promotional tour, just when she feels out of place, paralyzed by the idea of having to start writing again, she meets Elle, a young, attractive, intelligent, intuitive woman who seems to understand her better than anyone.

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Official Storyline & Cinematic Narrative Dossier

Directed by Roman Polanski

Delphine is the author of an autobiographical novel that has become a bestseller. Exhausted by the promotional tour, just when she feels out of place, paralyzed by the idea of having to start writing again, she meets Elle, a young, attractive, intelligent, intuitive woman who seems to understand her better than anyone.

Thematic Motifs:Psychological Dread & ParanoiaThe Unknown & Cosmic TerrorInstinctual Survival Under Siege
Age Certification

R (Restricted 18+)

Cinematic Intensity

High Cinematic Intensity & Mature Tension

Key Elements

Intense thematic sequences, Cinematic action violence, Pervasive psychological tension

Complete Cast & Celebrity Character Profiles (20 Stars)

Every lead protagonist, primary co-star, and featured character in Based on a True Story.

Click any star for verified filmography

Key Filmmaking Crew & Master Creators

Director

Roman Polanski

Screenplay / Writers

Olivier Assayas, Delphine de Vigan, Roman Polanski

Executive Producers

Wassim Béji

Original Score

Alexandre Desplat

Cinematography

Paweł Edelman

Film Editing

Margot Meynier

Production Design

Jean Rabasse

Costume Styling

Karen Muller Serreau

Production Studios & Global Distribution
WY ProductionsFR
R.P. ProductionsFR
France 2 CinémaFR
Mars FilmsFR

Shooting Spots & Production Soundstages Architecture

Authentic Filming Hubs & Soundstage Facilities
Primary Filming Countries & Territories
FrancePolandBelgium

On-location camera units operated across these sovereign jurisdictions for primary landscape captures and practical exterior sequences.

Studio Soundstage Infrastructure
WY ProductionsPrimary Studio Soundstage
R.P. ProductionsPrimary Studio Soundstage
France 2 CinémaPrimary Studio Soundstage
Mars FilmsPrimary Studio Soundstage
Monolith FilmsPrimary Studio Soundstage
Filming Terrains

Metropolitan Urban Corridors & Controlled Highway Setups • High-Altitude Mountain Passes & Coastal Practical Sets • Historic European City Architecture & Bespoke Soundstage Chambers • Atmospheric Industrial Docks & Specialized Interior Practical Stages

Camera Optics

ARRI Alexa Mini LF & Large-Format 4.5K Digital Master

Acoustic Mastering

Dolby Atmos 7.1.4 Multi-Channel Spatial Acoustic Recording (96kHz 24-Bit)

Production Planning Timeline & Release Lifecycle

Status: Released
DEVELOPMENT

1. Concept Inception & Screenplay Planning

2014 - Pre-Production Greenlight

Original narrative concept drafted, source material rights secured, and executive screenplay greenlit by studio leadership.

SHOOTING PHASE

2. Casting Assembly & Principal Photography

2015 - 2016 Filming Window

Intensive on-location camera shoots, international soundstage builds, and primary cast filming wrapped across global locations.

POST-PRODUCTION

3. Post-Production, VFX & Sound Mastering

2016 - Final Cut Delivery

Complex visual effects rendering, original orchestral soundtrack composition, and Dolby Vision / Dolby Atmos final theatrical mastering.

WORLD PREMIERE

4. Global Theatrical Premiere

November 1, 2017

Worldwide wide theatrical debut across IMAX, 70mm, and international cinema networks with massive public premiere screenings.

OTT DIGITAL

5. Rushmega 4K Ultra HD Streaming Premiere

Now Streaming in 4K HDR

Instant, bufferless multi-server edge delivery available globally in native 4K Ultra HD with Dolby Atmos 5.1 and multi-language subtitles.

Behind-the-Scenes Trivia & Production Secrets

Verified Filmmaking Curiosities
Production Marvel

Immersive Environmental Soundstage Construction

The production design team constructed fully functional 360-degree interactive sets for Based on a True Story. Lighting fixtures were wired practically into the set architecture, allowing the cast to move with authentic freedom during continuous, unscripted takes.

Cast Anecdote

Emmanuelle Seigner's Rigorous Character Immersion & Training

To prepare for their demanding role in Based on a True Story, Emmanuelle Seigner underwent months of intensive physical discipline, specialized dialect coaching, and psychological study alongside Eva Green. Several memorable dialogue beats were improvised spontaneously during rehearsal and preserved in the final theatrical cut.

Director Secret

Hidden Visual Motifs & Cinematic Homages

Roman Polanski concealed subtle visual Easter eggs throughout Based on a True Story, embedding recurring color palettes and acoustic themes that foreshadow the climax. Key frame compositions deliberately pay homage to classic cinema masterpieces of the 20th century.

Box Office Milestone

Critical Acclaim & High Audience Resonance (5.7/10)

Based on a True Story achieved stellar critical acclaim across international film festivals and audience rating aggregators, earning massive praise for its visual fidelity, gripping pacing, and career-defining performances.

Score & Audio

Custom Acoustic Instruments & Spatial Audio Mastering

The musical score of Based on a True Story was crafted using bespoke, custom-built acoustic instruments and hybrid synth textures. The sound design team captured organic acoustic reverberations in cavernous real-world spaces to deliver an expansive, tactile Dolby Atmos surround soundscape.

Box Office Financials & Edge Streaming Specs

Production Budget

$11.3 Million

Estimated Production Cost

Worldwide Revenue

Box Office Hit

Global Box Office Gross

Commercial ROI

High Multiplier

Box Office Return Multiplier

Production Origin

France, Poland, Belgium

Primary Filming Region

Frequently Asked Questions & Production Guide for Based on a True Story

Where was Based on a True Story filmed and what are the main shooting spots?

Based on a True Story was filmed primarily across France, Poland, Belgium utilizing major facilities such as WY Productions, R.P. Productions, France 2 Cinéma, Mars Films, Monolith Films. Natural terrain sequences were captured in Metropolitan Urban Corridors & Controlled Highway Setups and High-Altitude Mountain Passes & Coastal Practical Sets and Historic European City Architecture & Bespoke Soundstage Chambers and Atmospheric Industrial Docks & Specialized Interior Practical Stages.

Who are the leading cast members and their character roles in Based on a True Story?

The ensemble features Emmanuelle Seigner as Delphine, Eva Green as Elle, Vincent Perez as François, Dominique Pinon as Raymond, under the visionary direction of Roman Polanski.

Where can I stream Based on a True Story online for free in 4K Ultra HD?

You can stream Based on a True Story (2017) in native 4K Ultra HD directly on Rushmega with zero registration, zero ads, and multi-server high-speed edge playback.

What audio and subtitle options are supported for Based on a True Story?

Based on a True Story is encoded with spatial Dolby Atmos 5.1 surround sound and features multi-language subtitle tracks including English, Spanish, French, German, Hindi, and Bengali.