Movie Poster Sizes and File Formats Explained

What movie poster size do I need?

Most US independent films need a 27×40 inch theatrical one-sheet at 300 DPI for print, plus a 1920×1080 pixel 16:9 image for streaming and digital title pages. Add 1080×1080 and 1080×1920 crops if you are running social ads or festival Instagram. Always confirm extra sizes with your distributor before lock.

If you only print one poster for a premiere, the one-sheet is the priority. If the film lives on a platform grid, the 16:9 image is the one strangers actually click. Design the key art so both crops work. Do not design only for the wall and hope the thumbnail survives.

International one-sheets exist (UK quad, French grande) but most indie teams still start US 27×40 and scale. Ask the printer for bleed and color profile. Ask the platform for current thumbnail specs — they change, and a 2022 PDF from a forum is not a spec sheet.

Standard sizes at a glance

This comparison is the snippet-friendly version of the rest of the article. Print sizes are physical. Digital sizes are pixels. Do not send a 72 DPI web JPG to a festival that asked for a 300 DPI poster — it will look soft on a wall even if it looks sharp on a phone.

US theatrical one-sheet (print)

The standard US theatrical poster is 27×40 inches (686×1016 mm) at 300 DPI. Deliver as PDF/X or high-quality TIFF/PSD with bleed if your printer requires it. This is the size used for physical screenings, premiere displays and many festival print requirements.

At 300 DPI, 27×40 inches is a large pixel canvas. Flattened JPG “posters” downloaded from the web are not this. If a designer only sends a 1080-pixel-tall image, it is a social graphic, not a one-sheet. Ask for the physical size in inches and the DPI in the same sentence.

Billing blocks, quotes, and laurels compete with the image. Festival posters should leave a clean zone for laurels so you are not redesigning after official selection. See the festival service if submission timing is the actual constraint.

Related: festival-ready poster design.

Streaming and VOD thumbnails

Major platforms commonly use 1920×1080 px (16:9) key art for title pages. Some distributors also request 1400×2100 px portrait crops or platform-specific safe zones — confirm with your distributor before final export so type does not sit under a play button or logo.

Streaming art is judged at the size of a postage stamp on a television guide. Faces, silhouette, and title matter more than fine texture. A poster that looks rich in a lobby can fail on a grid if the focal point is in the lower third where UI chrome sits.

Do not upscale a social square to 1920×1080 and call it key art. Start from the master composition, then crop. That is the whole point of designing key art as a system.

Related: key art campaign system.

Social and digital advertising

Social crops are usually derived from the same key art: 1080×1080 px for Instagram feeds, 1080×1920 px for Stories, and various IAB banner sizes for paid media. Designing from one core concept keeps paid and organic from looking like two different films.

Vertical video UI covers the top and bottom. Keep the title and faces in the center third. A poster with credits along the bottom will lose them on Reels. If you need credits, make a separate press still, not a compromised key art.

Paid media teams will also ask for untagged versions without URL or date, plus versions with a clear CTA. Build those as layers in the master, not as five unrelated files named final.

Related: action poster portfolio and comedy poster examples.

File formats to request from your designer

At minimum request a layered PSD or equivalent for future edits, a flattened print PDF at 300 DPI, and web-optimized JPG or PNG exports for digital use. Organized file names and separate folders per deliverable save time when a publicist asks for “the poster” at 11 p.m.

PDF/X is the print conversation. sRGB JPG is the web conversation. Do not email a 1 GB TIFF to a journalist. Do not send a 200 KB JPG to a printer. Split the package: print/, digital/, social/ — boring folders prevent expensive mistakes.

If you may add laurels later, keep a layered title and a clear patch of background. Flattened-only delivery means paying again to reopen the art. Drix includes organized print and digital files as part of the job, not as a surprise line item.

Related: movie poster pricing guide and indie poster design service.

DPI, bleed, color, and what “print-ready” means

Print-ready means the file is the correct physical size, 300 DPI, correct color mode for that printer, and includes bleed and safe margins if asked. “Looks good on my laptop” is not print-ready. Neither is an RGB screenshot of a PDF.

Bleed is extra image beyond the trim so the printer can cut without white edges. If your one-sheet has a thin border as a design choice, tell the printer — borders near trim are where cheap cuts look amateur. Safe margin is where type should not sit.

Color: many digital-first teams work in sRGB and convert for print with the printer’s profile. If you have a house CMYK profile, send it. If you do not, say so. Guessing a profile is how skin tones shift on the festival wall.

How to put sizes in one briefing sentence

A complete size brief sounds like this: “US 27×40 one-sheet at 300 DPI with bleed, 1920×1080 streaming, 1080×1080 and 1080×1920 social, layered master plus print PDF.” If you only need the one-sheet, delete the rest. If a distributor sent a spec PDF, attach it. That sentence is cheaper than three revision rounds caused by missing pixels.

If you are unsure, start with the one-sheet and the 16:9. Those two cover a premiere wall and a platform grid. Social crops can follow from the same master the same week. Do not wait until a publicist asks at midnight for a square — that is when people screenshot a trailer and upload it, and that screenshot becomes the film’s public face.

Keep a simple delivery checklist: print PDF named with the title and “27x40-300dpi”, streaming “1920x1080”, social “1080x1080” and “1080x1920”, plus the layered master. Boring names are a feature. When three people on a team search email for “poster”, the right file should be obvious without opening ten attachments.

Related: send your size list with a quote request.

Sources

• Wikipedia: Film poster
• Wikipedia: One-sheet