Does your film count as a short, and how much do you need to cut?

The one hard line: 40 minutes, credits included

Most of the rules about film length are local. A festival sets one cap, a broadcaster sets another, and a streaming platform may not care at all. There is one definition, though, that festivals and filmmakers widely use as a reference point: the Academy of Motion Picture Arts and Sciences treats a film as a short when it runs 40 minutes or less including all credits. A film that runs longer than 40 minutes is a feature under the same rules.

Read that sentence slowly, because two parts of it catch people out.

• "Or less" means the limit itself qualifies. A film that runs exactly 40:00 is a short. A film that runs 40:01 is not.
• "Including all credits" means the whole running time. Opening titles, the end crawl, and anything you place after the crawl are all inside the 40 minutes. You do not get to subtract the credits and measure the story alone.

The checker above applies that line exactly. Enter the minutes and seconds of your finished film, and it tells you which side of 40:00 you are on. Everything else it reports, such as the festival band your film sits in, is guidance rather than law, and the page says so wherever it matters.

Runtime is only one of the Academy conditions

Being 40 minutes or shorter makes a film the right length for the short film categories. It does not make the film eligible for an Oscar. The Academy rules for the short film awards also set qualifying routes, such as winning a specified award at a qualifying festival or completing a qualifying theatrical run, along with other conditions about release and format. Those details are published fresh for each awards year and they change. If an Academy campaign is part of your plan, download the current rules for the short film awards and read them in full before you lock your festival strategy.

Festival limits: each festival writes its own

Outside the Academy, there is no single short film limit. Each festival publishes its own rules, and the caps vary a great deal. Some festivals accept shorts up to 40 minutes, matching the Academy line. Others cap shorts at 30, 20 or 15 minutes. Some run separate competitions for very short work, under 5 or under 10 minutes. A few run a medium-length section for films that are too long to be shorts and too short to be features.

Because the rules differ, the checker groups runtimes into the bands festivals commonly use. Treat these as a map, not a rulebook.

The ranges in that table are typical groupings, not a published standard. A festival that says "shorts up to 20 minutes" may mean 20:00 exactly or may allow a few seconds of grace; you only know by reading its rules or asking. Some festivals also draw their own feature line somewhere other than 40 minutes, such as 60 minutes, which is another reason to check every entry form rather than assuming.

Why shorter shorts get programmed more easily

A rule of thumb commonly quoted by festival programmers is that a shorter film has more places to land. A shorts program is a block of screen time, often around 90 minutes, and a programmer fills it with several films that work together. A 10-minute film is one of eight or nine pieces. A 35-minute film takes more than a third of the block on its own, so it has to be strong enough to justify the films it pushes out.

That is advice, not a rule, and it should never make you cut a film below the length its story needs. But if your story would genuinely work at 14 minutes and you are sitting at 18, the band change is worth knowing about before you start submitting.

How the checker does the arithmetic

The tool works in whole seconds. It converts your runtime to seconds, compares it with the limit you picked, and reports the gap. Here is an illustrative example worked all the way through, using the same numbers the tool produces for the second worked example on this page.

The film. An adaptation of a short story runs 18 minutes 45 seconds, credits included. The opening title and end credits together run 2 minutes. The filmmaker wants to enter festivals that cap shorts at 15 minutes.

Step 1: total runtime in seconds. 18 minutes is 1,080 seconds. Add 45 and the film runs 1,125 seconds.

Step 2: the limit in seconds. 15 minutes is 900 seconds.

Step 3: the cut. 1,125 minus 900 leaves 225 seconds over the limit. 225 seconds is 3 minutes 45 seconds, so the tool reports "Cut to reach target: 3:45".

Step 4: the cut as a share of the film. 225 divided by 1,125 is 0.2, so the cut is 20.0% of the whole film.

Step 5: the story without credits. 1,125 seconds minus 120 seconds of credits leaves 1,005 seconds, which is 16:45 of story.

Step 6: the cut as a share of the story. 225 divided by 1,005 is about 0.224, so the cut would remove 22.4% of the story if it all came out of the scenes.

Step 7: what the credits could give back. The tool assumes you could save up to about half of the credit time by running the crawl faster or setting names in two columns. Half of 120 seconds is 60 seconds. That leaves 165 seconds, or 2:45, that must come out of the story.

The verdict for that film is a warning: it still counts as a short under the Academy rules, comfortably, but it does not fit a 15-minute cap. Because 22.4% is more than the tool's 15% threshold for trims, its advice is to look for a whole scene or subplot to lose rather than shaving frames.

Two more runs of the same math

A film that already fits. A 14:30 short with 90 seconds of credits, aiming at the same 15-minute cap, runs 870 seconds. 900 minus 870 is 30, so the tool shows 0:30 of room under the limit, nothing to cut, and a story length of 13:00. The verdict is a pass.

A film on the wrong side of 40. A 52-minute adaptation with 4 minutes of credits runs 3,120 seconds. That is 720 seconds, or 12:00, past the Academy line, so under those rules the film is a feature. If the filmmaker still wants to enter it as a short at festivals that cap shorts at 30 minutes, the cut is 3,120 minus 1,800, which is 1,320 seconds or 22:00. That is 42.3% of the film. No amount of trimming gets there; it would be a different film.

Reading each part of the result

The result panel is built so you can act on it without doing any of the sums yourself.

• Total runtime is the number every limit is measured against. It always includes the credits.
• Runtime without credits is your story time. It matters for planning the cut, not for qualifying.
• Academy category reads "Short film" at 40:00 or less and "Feature" at 40:01 or more. Nothing else changes it.
• Cut to reach target is the gap between your total and the limit you picked, shown as minutes and seconds.
• Room under target is the opposite: how much you could add, for example a longer credit roll, before you break the limit.
• Typical festival band places the film in the groupings from the table above.

The bar chart underneath draws three lines on the same scale: your limit, the story, and the credits sitting on the end of the story. If the credits bar runs past the end of the limit bar, the credits are what pushes you over. If the story bar alone runs past it, the problem is in the picture.

The table at the bottom repeats the calculation for every common limit at once. That is useful when your festival list mixes caps. A film at 18:45 fits the 20-minute, 30-minute and 40-minute limits with no cut, needs 3:45 for a 15-minute cap, and would need 8:45 for a 10-minute cap. Seeing those side by side helps you decide whether one shorter festival cut is worth making, or whether you should simply drop the festivals with the tightest caps.

A festival cut and a release cut can differ

Nothing stops you from keeping two versions. Plenty of filmmakers make a tighter festival cut to fit the most common caps and keep a longer version for online release or a director's cut. If you do this, treat them as separate deliverables:

• Name the files clearly, with the runtime in the file name, so the wrong version never goes to a festival.
• Re-time each version from its own export rather than subtracting the cut from the long version.
• Keep the credits matched to each version. A shorter cut may lose a performer, and that performer's credit must come out too.
• Tell sales agents and distributors which version is which, because a premiere at a festival is usually tied to the version that screened.

The Academy has separate short film categories for live action, animated and documentary work. The 40-minute definition is the starting point, but read the rules for the specific category you are entering, because each one has its own conditions.

Timing your film the right way

Every limit applies to the film the festival receives. That makes the measurement simple in principle, and it is still where most mistakes happen.

1. Export the final version first. Do not read the length from your edit timeline. Timelines often include hidden black, unrendered titles or a slate at the head that the exported file does not, or the other way round.
2. Play the exported file and note the first and last frames. The runtime is the distance between the first frame of picture and the last frame of anything, including the final logo card.
3. Count everything the audience will see. Company logos, a dedication card, and any scene after the credits are part of the running time.
4. Leave a margin if you are close. If the file runs within a few seconds of a limit, cut a little further rather than arguing over a frame.

A trap with 23.976 frames per second

Many projects run at 23.976 frames per second rather than a true 24. Timecode on those projects counts frames as if there were 24 in every second, which means the timecode runs slightly slower than a wall clock. The difference is small but real: 40 minutes of non-drop-frame timecode at 23.976 is 57,600 frames, and 57,600 frames at 23.976 frames per second take about 2,402.4 seconds to play. That is 40:02.4 of real time.

For most films that gap does not matter. For a film that sits right on a limit, it might. If your timecode says 39:59:20 and your film is meant to qualify under 40 minutes, check the real playing time in a media player and give yourself a few seconds of margin.

Credits are the cheapest seconds you have

Because every limit includes the credits, the credit roll is often the first place to look when you are a few seconds over. It is also the only cut that never touches the story.

• Speed up the crawl. A crawl that moves faster still reads well if the type is large and the lines are short.
• Use two columns. Setting role and name side by side, or splitting a long crew list into two columns, can roughly halve the length of the crawl.
• Trim the thank-you list. Thank everyone, but consider putting the long list on your website and keeping the on-screen version short.
• Drop opening credits. Many shorts show only the title at the start. Moving the remaining opening cards to the end does not save time by itself, but it often leads to a tighter, combined credit sequence.

The tool's "save up to about half" figure is a planning estimate, not a promise. Contracts may require specific credits, and some credits must appear at a minimum size or duration, so check your agreements before you shrink anything.

Cutting the story without hurting it

When the credits cannot cover the gap, the time has to come out of the picture. There are two very different ways to do that, and the checker's percentage tells you which one you are facing.

Under about 15%: trims

If the cut is a small share of the story, you can usually find it without losing a scene. Trims are small edits spread across the whole film:

• Enter scenes later and leave them earlier. Most scenes can start a beat after the characters are already in place and end a beat before the obvious exit.
• Remove repeated beats. If two moments make the same point, keep the stronger one.
• Shorten establishing shots. Exteriors and transitions are often held longer than the audience needs.
• Tighten pauses in dialogue. Silence is powerful when it is chosen and dead weight when it is accidental.

The arithmetic is encouraging. A 15-minute short might contain around 150 shots. Taking a third of a second from each of them saves 50 seconds without removing a single moment the audience would notice.

Over about 15%: structure

Once the cut passes roughly 15% of the story, trims rarely get you there without making the film feel rushed. That is the point to remove something whole: a subplot, a secondary character's thread, or a scene that explains what the audience has already understood. The 15% figure is a planning threshold built into this tool, not an industry rule; your editor's judgement matters more than any percentage.

For a film adapted from a book, this is usually where the source material pulls hardest. Scenes that are essential in the book may be repeated information on screen, because the actors' faces and the setting already carry what the prose had to explain. The adaptation scope planner linked below can help you decide which threads to keep before you reach the edit.

When a film lands between 40 and 60 minutes

A film in this range is a feature for the Academy and too long for many festival shorts sections. It is the hardest length to place, and it is common for book adaptations, because a short story or novella often has more incident than a 20-minute film can hold and less than a full feature needs.

You have three honest options:

1. Cut it under 40 minutes. If the story survives the cut, this opens up every short film competition, including the Academy categories.
2. Expand it to feature length. If the material is rich enough, adding scenes and depth can make it a modest feature, often 70 minutes or more.
3. Split it into episodes. A 50-minute film might work better as several short episodes for online release, where length rules are set by the platform rather than by festivals.

Some festivals do run a medium-length section, so look for one before you assume the film has no home. Check the rules carefully: their range might be 30 to 60 minutes, 40 to 70 minutes, or something else entirely.

Planning length before you shoot

The best time to check length is before you have footage. A widely used rule of thumb is that one page of a properly formatted screenplay runs about one minute on screen. It is rough: action-heavy pages run faster and slow dialogue scenes run longer. Still, a 14-page script is a good sign you will land near 14 minutes before credits, and a 28-page script is a warning that a 15-minute cap is out of reach.

If you are adapting a book, plan the length at the outline stage:

• Pick the limit first. Decide which festivals or categories you are aiming at and write down their caps.
• Subtract the credits. If you expect 90 seconds of credits and the cap is 15 minutes, you have 13:30 for the story.
• Choose one thread. A short rarely holds more than one main storyline from a book. Choose the one that shows the heart of the book best.
• Write to the page count. Use the one-page-per-minute rule as a guide while drafting, then time a table read.

A checklist before you submit

Run through these before you upload a film to any festival:

• Timed from the export. The runtime comes from the exported file, from first frame to last.
• Credits included. The number you are checking includes opening titles, end credits and anything after them.
• Limit confirmed. You have read the length rule for this festival this year, not last year.
• Category confirmed. You know whether the festival counts your film as a short, a medium-length film or a feature.
• Margin left. If the film sits within a few seconds of a limit, you have checked the real playing time.
• Version tracked. If you made a shorter festival cut, you know which file is which and you are sending the right one.

Mistakes that cost entries

Measuring the story and forgetting the credits. A 39-minute story with 2 minutes of credits runs 41 minutes, which is a feature under the Academy rules.

Trusting the timeline instead of the file. Unrendered titles, a head slate or extra black can change the length between the timeline and the export.

Assuming every festival uses 40 minutes. Plenty of festivals cap shorts much lower. Entering a 25-minute film into a 20-minute category can get it disqualified, and many festivals do not refund entry fees, so check the refund terms before you pay.

Cutting a scene to hit a band nobody asked for. If none of the festivals on your list cap at 15 minutes, there is no reason to force the film under 15. Fit the limits you actually face.

Re-cutting without re-checking. Every new cut needs a new timing, including small changes to the credits.

Sources and rules this page relies on

• Academy of Motion Picture Arts and Sciences, Rules for the short film awards and the general Academy Awards rules. These are the source of the definition used throughout this page: a short film runs 40 minutes or less including all credits, and a feature runs more than 40 minutes. The Academy publishes the rules for each awards year; read the current edition for eligibility routes and deadlines.
• Each festival's published submission rules. Festival length caps, categories and any medium-length sections come from the festivals themselves. The bands in this page are typical groupings for planning, not a published standard.
• SMPTE ST 12, the timecode standard published by the Society of Motion Picture and Television Engineers. The note about 23.976 frames per second and wall-clock time follows from how non-drop-frame timecode counts frames.
• Rules of thumb named as such. The one-page-per-minute screenplay estimate, the programmer advice about shorter films and the tool's 15% trim threshold are planning guides, labeled where they appear, not rules from any body.