Skip to main content
Sign up

Glossary

Aspect ratios explained.Why shape changes everything.

An aspect ratio is the proportional relationship between the width and height of an image or screen, expressed as two numbers separated by a colon (such as 16:9 or 2.

Start the $1 trialRead definition
Definition

An aspect ratio is the proportional relationship between the width and height of an image or screen, expressed as two numbers separated by a colon (such as 16:9 or 2.39:1). Aspect ratio fundamentally shapes how a scene feels: wider ratios emphasize landscape and horizontal movement, while taller ratios can create intimacy or claustrophobia. Choosing the right aspect ratio is one of the first creative decisions in any production. M Studio supports multiple aspect ratios for storyboard generation, letting you visualize your project in its intended format from the start.

In practice

See it on screen

Samples made in M Studio.

Script → board
Clip 1 / 6

Script → board

Section 01

Aspect ratios in M Studio AI generation

Aspect ratios supported in M Studio with typical distribution targets and export dimensions
Aspect ratioM Studio settingBest forExport dimensions (HD)Typical use
16:9 (1.78:1)WidescreenYouTube, streaming, corporate1920×1080Default for most video production
9:16 (0.56:1)VerticalTikTok, Reels, Shorts1080×1920Mobile-first social content
1:1 (1.00:1)SquareInstagram feed, album art1080×1080Balanced grid layouts
4:3 (1.33:1)Classic / AcademyNostalgia, intimacy, boxed feel1440×1080Stylistic choice for modern indie films
21:9 (2.39:1)Cinematic / AnamorphicTheatrical, epic scope2560×1080Narrative features, cinematic music videos
1.85:1Theatrical FlatStudio theatrical release1920×1037Most studio films shot for cinema release
4:5 (0.80:1)PortraitInstagram feed (tall)1080×1350High-engagement social feed content

How it works

From script to screen in six steps

M Studio builds a film shot by shot, and you direct every shot — this is the whole path, start to finish.

  1. 01

    Start a film

    Start from a one-line brief, or import a screenplay PDF and build straight from the pages you already wrote.

  2. 02

    Add your script

    Scenes, action and dialogue laid out shot by shot — editable line by line before anything renders.

  3. 03

    Add your characters

    Add each character once with a reference image so the same face carries across every shot in the film.

  4. 04

    Build the storyboard

    Your script breaks into shots on a canvas. Reorder, reframe and re-prompt any shot until the board reads right.

  5. 05

    Make the video clips

    Turn approved storyboard pictures into video clips one shot at a time, then layer voiceover, music and sound effects.

  6. 06

    Export the cut

    Take the finished cut out as an MP4, MOV or WebM, up to 4K on Professional and up, ready for the edit or the pitch.

There is no length cap in the editor. Because films are made shot by shot, how long a film can run comes down to how many video clips your plan includes — not a limit in the tool.

FAQ

Common questions

Most modern theatrical films use either 2.39:1 (anamorphic widescreen) or 1.85:1 (flat widescreen). Films intended primarily for streaming often use 16:9 (1.78:1). The choice depends on the director's creative intent and the film's primary distribution format.

Black bars (letterboxing) appear when a film's aspect ratio is wider than your screen. A 2.39:1 film shown on a 16:9 TV will have bars above and below the image. This preserves the filmmaker's intended framing rather than cropping the sides of the image.

Yes, and some filmmakers use this to powerful effect. The Grand Budapest Hotel, Mommy, and Interstellar all shift aspect ratios to mark changes in time period, emotional state, or narrative intensity. The shift itself becomes a storytelling device.

For Stories and Reels on Instagram and TikTok, use 9:16 vertical. For feed posts, 1:1 square or 4:5 vertical works well. For YouTube, 16:9 is standard. Many creators produce a widescreen master and then reframe for vertical platforms.

Related terms

Explore related concepts

View full glossary

Film composition

Film composition refers to the deliberate arrangement of visual elements within the camera frame, including subject placement, leading lines, depth, balance, color, and negative space.

Read definition

Shot types in film

Shot types refer to the different ways a camera frames a subject, ranging from extreme wide shots that establish geography to extreme close-ups that capture subtle emotion.

Read definition

Visual storytelling

Visual storytelling is the practice of conveying narrative, emotion, and meaning through images, composition, color, movement, and sequencing rather than through dialogue or text alone.

Read definition

Post-production

Post-production encompasses all processes that occur after principal photography wraps, including editing, visual effects, sound design, color grading, music composition, mixing, and mastering.

Read definition
Video clip made in M Studio

From learning to making

Ready to put this on screen?

M Studio brings the script, the storyboard, and the video clips together in one place.

Start the $1 trialWatch examples

$1 today for 24 hoursThen from $27/mo unless you cancelReminder email ~6h before it ends