
Your film will be seen in a multiplex, on a living room OLED, on a mid-range LED TV with the brightness turned all the way up, on a laptop, and on a phone in a moving train. Sometimes all in the same week.
For years, the usual answer was to grade for cinema first, then do a separate pass for television, and sometimes a third pass for HDR streaming if the platform asked for it. Each pass took time, money, and the colourist’s patience. And each version drifted a little further from what the director signed off.
That approach is changing. Grading once in HDR and deriving the other versions from that master has become common practice for streaming deliverables, and it is spreading to features that release in cinemas first. In India, interest has grown as HDR-capable cinema screens and premium formats appear in more cities, and as more post houses invest in HDR grading suites.
The creative work happens once. The skill is in planning every output before the first shot is graded. Here is what that workflow looks like, why it helps, and what can go wrong.
A Short Glossary for Producers
Colour sessions are full of acronyms. You do not need to be a colourist, but these words will come up in every quote and every review.
- SDR
- Standard dynamic range. The traditional TV and web picture, usually delivered in Rec. 709.
- HDR
- High dynamic range. Brighter highlights, deeper shadows, and more colour than SDR, on screens that can show it.
- PQ
- Perceptual Quantizer, the signal curve used by most HDR streaming masters, including HDR10 and Dolby Vision.
- HLG
- Hybrid Log-Gamma, an HDR format mostly used in broadcast. Less common for feature film delivery.
- Rec. 709 and Rec. 2020
- Colour standards. Rec. 709 is the SDR TV standard. Rec. 2020 is a much wider container used for HDR.
- DCI-P3
- The colour space used for digital cinema projection. Home HDR masters often stay inside P3 even when delivered in a Rec. 2020 container.
- Nits
- A unit of brightness. Useful for comparing screens: a cinema screen is far dimmer than a bright home TV.
- Trim
- An adjustment made to a derived version, such as SDR, so that it looks right on that display without changing the main grade.
- DCP
- Digital Cinema Package. The set of files a cinema projection system plays.
Why Grade in HDR First
HDR holds more information than SDR: brighter highlights, deeper shadows, and a wider range of colour. If you grade in HDR first, you are making creative decisions on the widest possible canvas. Going down to SDR from there is a controlled process. Going up from an SDR grade to HDR rarely looks as good.
The practical benefits:
- One creative grade. The director and DP approve one master. Other versions are trims, not reinventions.
- Less drift. Every version comes from the same source, so skin tones, contrast, and mood stay consistent.
- Faster deliverables. Once the HDR grade is locked, the SDR and other outputs usually take days rather than weeks.
- Future value. An HDR master holds up as screens get better. A film rewatched on a new TV in five years should not look worse than it did at release.
There is one honest cost. HDR grading needs a properly calibrated HDR reference display and a colourist who is comfortable with it. Those suites cost more per hour than a basic SDR room. The saving comes later, in fewer separate passes.
Old Workflow and New Workflow Side by Side
| Separate passes | Grade once in HDR | |
|---|---|---|
| Main creative grade | Cinema first, then TV regrade | One HDR master |
| SDR version | Often a second full grade | Derived, then trimmed |
| Consistency between versions | Drifts over time | Same source for all |
| Suite cost per hour | Lower | Higher |
| Total grading days | Often more | Often fewer |
| Risk if specs arrive late | High | Still high |
That last row is not a mistake. No workflow protects you from deliverable specs that arrive after the grade is locked. More on that below.
How the Workflow Usually Runs
Every post house has its own method, but a common structure looks like this.
flowchart TB A["Camera originals and VFX"] --> B["Colour pipeline set in prep, e.g. ACES"] B --> C["HDR master grade, PQ on reference monitor"] C --> D["Home HDR deliverable, HDR10 or Dolby Vision"] C --> E["SDR Rec. 709 version, analysis plus trims"] C --> F["Cinema version, DCI-P3 for projection"] F --> G["HDR cinema or premium format, if booked"] D --> Q["QC on matching display"] E --> Q F --> Q G --> Q
- Set the colour pipeline early. Many productions use a scene-referred workflow such as ACES or a camera maker’s wide-gamut pipeline1. This keeps footage from different cameras consistent and makes output to multiple formats more predictable.
- Grade the HDR master. Usually in PQ with P3 colour inside a Rec. 2020 container, on a calibrated HDR reference monitor.
- Create the SDR version. Using a tone-mapping system such as Dolby Vision analysis and trims, or a manual trim pass. The colourist adjusts shots that do not translate well.
- Create the cinema version. The theatrical DCP is usually a separate output, mastered for projection standards. If the film is releasing on HDR cinema screens or premium formats, those may need their own versions too.
- QC every version on the right display. Not on the same monitor. Each version needs to be checked in conditions close to how audiences will see it.
Important
Cinema projection and home HDR are not the same thing. A traditional cinema screen is much dimmer than a home HDR display2, and the room is dark. A theatrical master is not just the home HDR master played on a big screen. Budget and schedule for both.
Where the Cinema Version Fits
People often ask why, if the grade is done once, the cinema still needs separate work. The answer is the viewing environment.
In a multiplex, the screen is large, the room is dark, and peak brightness is modest. In a living room, the screen is small, there is often ambient light, and a good TV can be far brighter. The same numbers do not produce the same feeling. A night scene that reads beautifully at home can turn muddy on a dim projector, and a bright window that looks natural in the suite can feel harsh at home.
So the colourist makes the cinema version as its own careful output from the master. On a well-planned job, this is a day or a few days of focused work, not a regrade.
Note
Premium HDR cinema formats and direct-view LED cinema screens are expanding, but they are still a minority of screens in India. Check with your distributor which formats your release has actually booked before paying for extra masters.
How Review and QC Actually Flow
Most grading problems I see are not technical. They are communication problems: the wrong person signing off on the wrong screen at the wrong time. This is a healthy review loop between the colourist and the producer’s side.
sequenceDiagram participant C as Colourist participant DIR as Director and DP participant P as Producer participant QC as QC house P->>C: Delivery specs from all partners C->>DIR: HDR master review in the suite DIR-->>C: Notes, then approval C->>C: Build SDR and cinema versions C->>P: Review links, plus DCP test screening P-->>C: Sign off each version C->>QC: Send masters for checks QC-->>P: QC reports, pass or fail P->>C: Fix list, if any
Note where the producer appears: at the very start with the specs, and at the end with sign-off. If the specs do not arrive at the start, the whole loop runs twice.
The Phone vs Theatre Problem
This is where many first-time producers get caught.
Directors often review cuts and grades on phones, laptops, or consumer TVs. Those screens have their own processing, brightness, and colour settings, and none of them match a grading suite. A shot that looks too dark on a phone might be exactly right in a cinema. A shot that looks great on a bright TV might be blown out in HDR.
How to manage it:
- Make final creative decisions in the grading suite. Use phones and laptops only for rough checks, not sign-off.
- Do a viewing in a real cinema if the film is theatrical. A DCP test screening catches problems you will not see on a monitor.
- Check the SDR on an ordinary TV. Most viewers will see that version. Make sure dark scenes still read and faces are not muddy.
- Do not chase every screen. You cannot make a film look perfect on every device. Aim for a strong reference grade and sensible trims.
Tip
When the director must review remotely, ask the post house about a calibrated remote review setup or a properly set up client monitor, rather than a phone link. It costs a little more and saves arguments later.
What Producers Should Ask Their Colourist
You do not need to understand every technical detail. You do need to ask the right questions before the grade begins.
- What is our mastering format? HDR PQ, HLG, Dolby Vision, or SDR only? This depends on your distribution deals.
- What colour pipeline are we using? And has the DIT on set been working in a way that fits it?
- What displays will we grade and review on? Ask for the specific reference monitor and how often it is calibrated.
- How will the SDR version be made? Analysis and trims, or a separate grade? How much time is scheduled for it?
- Who is handling the DCP? In-house, or a separate mastering facility? Will we do a test screening?
- What does each platform require? Get the delivery specs from your distributor and OTT partner before the grade starts, not after.
- How many review sessions are included? And what happens if the director wants more?
Common Pitfalls
Late deliverable specs
The most common problem. A platform’s HDR requirements arrive after the grade is locked, and the team has to redo work. Get specs at contract stage.
Mixed camera sources with no plan
Drone footage, phone footage, archive, and multiple camera brands all need a consistent pipeline. Sort it in prep, not in the suite.
VFX in the wrong colour space
If VFX vendors deliver shots in a different pipeline, they may not hold up in HDR. Highlights clip, skies band, and edges show. Share colour management documents with every vendor early3.
Subtitles and graphics too bright
White text at full HDR brightness can be painful to watch in a dark room. Set graphics and subtitle levels as part of the grade.
No version control
With several masters, labels and folders matter. One wrong file sent to a platform can mean rejection and redelivery fees.
Caution
Never rename a master by hand to “fix” a version mix-up just before delivery. Re-export it from the project with the correct settings and run QC again. A renamed file with the wrong metadata is one of the quickest ways to a platform rejection.
Rushing QC
Each master needs its own quality check. Platforms will reject files with issues, and fixing them under deadline costs more than doing it right the first time. QC can happen in the last week QC needs real days in the schedule.
Warning
HDR masters carry metadata that home TVs use to display the picture4. If that metadata is missing or wrong, the film can look too dark or too bright on viewers’ screens even when the picture itself is perfect. Make sure metadata is part of the QC report.
A Practical Deliverables Checklist
Use this as a starting point and adjust it to your deals.
- Delivery specs collected from every distributor and platform before grading.
- Colour pipeline documented and shared with DIT and VFX vendors.
- HDR master (format agreed with distributor and platform).
- SDR Rec. 709 version, derived and trimmed from HDR.
- Theatrical DCP (2K or 4K, as required).
- HDR cinema or premium format version, if releasing on those screens.
- Dolby Vision metadata file (XML), if applicable.
- HDR10 static metadata values checked, if applicable.
- Textless versions for international and OTT.
- Subtitle and caption files, checked against each version.
- DCP test screening done in a real cinema.
- QC reports for every master.
- Archive package: graded masters, project files, LUTs, and colour documentation.
If you plan this list during pre-production, the grade becomes a creative process instead of a technical scramble. Specs first, pipeline second, grade third. That order saves more money than any piece of software.
Need a partner who understands budgets, schedules, and delivery across theatrical and OTT? Contact Halawi Media today and let Austin Shivaji Kumar help plan and deliver your next production.
Footnotes
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Scene-referred simply means the footage is kept in a form that describes the light in the scene, rather than how it looks on one particular screen. That makes it easier to produce different outputs later without fighting the original look. ↩
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The long-standing reference for traditional cinema projection is 48 nits. Home HDR masters are commonly graded on reference monitors that reach 1,000 nits or more. That gap is why the cinema version needs its own attention. ↩
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A one-page document is often enough: working colour space, file format, bit depth, and a sample frame with known values. Send it to every vendor on the same day so nobody works from an old version. ↩
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For HDR10 this includes values describing the brightest pixel and the brightest average frame in the programme. Dolby Vision uses richer scene-by-scene metadata that also drives the SDR and other trims. ↩