How to create a 21:9 cinematic introduction

A wide title sequence can give a video a cinematic feel, but the wrong project size can leave black bars or crop important details. The fix is to choose the frame shape before editing, then compose and export for the screen where people will watch it.

Build the visuals in the video editor you already use. TooLab’s Audio Editor can help you trim, join and fade a soundtrack before you add it to the video.

Create the introduction

1. Plan the sound and the format. Decide where the introduction will play and whether you need an exact 21:9 frame or a common ultrawide preset. If you need to trim or fade music, prepare it in the Audio Editor before importing it into your video editor.
2. Set the project dimensions. For an exact 21:9 ratio, use dimensions that simplify to 7:3, such as 2520 by 1080 or 1680 by 720. If the destination specifies a particular ultrawide preset, use its exact dimensions instead. Set the frame rate to match your footage or delivery requirements.
3. Build a short visual sequence. Choose one or two strong shots, such as a wide location view followed by a closer detail. Keep each shot long enough to understand, and use a simple cut or restrained transition rather than adding motion effects to every clip.
4. Add the title and any logo. Place the main words where they have clear contrast against the image. Keep essential text away from the far left and right edges, especially if you may also make a 16:9 version.
5. Add sound and export a test. Place the prepared audio under the picture, fade it in or out if needed, and check that it starts and ends with the visuals. Export a short test using the dimensions and format required by your destination, then watch the file outside the editor.

A useful starting length is about 5 to 10 seconds. It is long enough for a few deliberate visual beats and a readable title, but short enough not to delay the main video.

Choose the right wide frame

Exact 21:9 dimensions

The ratio 21:9 is 2.33:1, or 7:3. A frame of 2520 by 1080 matches it exactly. Use an exact ratio when the delivery instructions specify 21:9 or when you want a precise project canvas without relying on a preset label.

A common ultrawide preset

Some editors call 2560 by 1080 21:9, even though its ratio is about 2.37:1. It is a widely used ultrawide size, but it is not mathematically exact. Match the requested pixel dimensions when the video is for a particular display, platform or client.

A version for 16:9 screens

A wide image shown inside a 16:9 frame can have black bars above and below. That preserves the whole picture. Filling a 16:9 frame instead requires cropping the sides, so a title or face near the edge may disappear. If you expect to make both versions, keep important text and subjects in the central part of the wide frame.

Fix common problems

1. Match the export to the project. If the finished video has unexpected black borders, check that the export dimensions match the project dimensions. A mismatch between the clip, project canvas and export can add borders or crop the image.
2. Adjust clips that look cropped. If a face, logo or title is cut off, reposition or resize that item in the frame. Do not stretch the picture to fill the canvas, because that makes people and objects look wider.
3. Make small text larger. A title that looks readable in the editor may be difficult to read on a phone or after compression. Preview the exported file at its intended playback size and increase the text size or contrast if needed.
4. Check the opening and ending frames. If the audio starts abruptly, add a short fade. If the video ends before the sound, trim or fade the audio so the introduction ends cleanly.
5. Export again with suitable quality. If fine details look blocky, increase the export quality or bitrate if your editor offers that setting. Keep the intended dimensions and file type, then compare the new export with the original footage.

Make the wide frame feel intentional

A wide canvas is not enough by itself to create a cinematic introduction. Give the viewer a clear visual path: establish the scene, show one detail or movement, then reveal the title. A slow camera move or a steady shot often works better than stacking several transitions.

Use the extra horizontal space for the scene, not for stretching text across the whole screen. Keep the title easy to read, and avoid placing important words over busy details. If the title needs a solid panel or shadow to stand out, use the smallest treatment that keeps it legible.

Sound helps the sequence feel connected. Choose a short musical phrase or a few quiet effects that fit the image, and keep their volume below any speech that follows. The Audio Editor runs in your browser, and files you open there stay on your device.