All tools

AI trailer maker for movie trailers

Write a logline and this AI movie trailer generator turns it into a trailer with a fixed cast: the same faces in every shot, spoken dialogue, sound effects and a score timed to each scene. Set a length of 30 seconds to 2 minutes, choose vertical or 16:9, and the Movie Maker plans, shoots and cuts the scenes.

Open the Movie Maker

Trailers are made in the FacelessGenie Movie Maker. Write the premise, cast the characters and set a short length there, and the cost shows before anything renders.

  • Write a logline and the beats the trailer should tease
  • Cast your characters once and reuse them in every scene
  • Pick a 30, 60 or 120 second length and a genre, then render
Make a trailer

Watch finished video examples

Short film made in the Movie Maker

A short film from the FacelessGenie Movie Maker, the same tool trailers are made in, showing a consistent cast across generated scenes.

  • Same characters across every scene
  • Generated dialogue, ambience and music
  • Scenes planned from a written premise

Tool details

How to make an AI movie trailer
  1. 01

    Write the logline

    One or two sentences on who the story is about and what goes wrong, plus the moments the trailer should tease. Add a genre and a mood for the score.

  2. 02

    Cast and storyboard

    Create up to 10 characters, then review the scenes the Movie Maker plans. Edit the dialogue or a scene description before the shots are generated.

  3. 03

    Render the trailer

    Each scene is generated with your cast, dialogue and sound, then cut together into one video you can download and post.

About this tool

Why trailers need a consistent cast

When each shot is generated from scratch, the hero in shot one can be a different person by shot four. A trailer falls apart when that happens, because the whole point is to make you care about a character in under a minute. The Movie Maker casts each character once and carries that look, wardrobe and voice into every scene it generates.

What you control and what is generated

You write the premise and can edit the synopsis, the scene list and each scene's dialogue and sound cue. The Movie Maker builds a storyboard for every scene, generates the shots with Seedance video models, and adds dialogue, ambience and music. Scenes run up to 30 seconds each on the highest quality setting, which is plenty for trailer cuts.

Trailers for films that do not exist yet

Writers use a trailer to pitch a screenplay or a series idea before anyone films it. YouTube channels post fan-concept and parody trailers. Authors make one for a novel launch. In every case the trailer is short, so you can try three genres for the same premise and keep the one that lands.

AI trailer generator for horror, thriller and action

Genre decides the rhythm of a trailer. A horror trailer holds on quiet shots and breaks them with a sound cue, a thriller cuts faster as the stakes rise, and an action trailer stacks big moments over a rising score. Pick the genre and the music mood when you set up the movie, then write scene sound cues such as "silence, then a door slams" to shape each beat. Comedy, drama, romance and slice-of-life work the same way.

From logline to trailer in one session

A trailer needs three things: a character the viewer can follow, a problem, and a final shot that leaves a question. Write those into the premise and the Movie Maker turns them into a scene list you can review and edit. Keep the cast small, two or three characters, so each one gets screen time in a 60 second cut.

AI trailer for a series, then the episodes

Because the cast is saved, a trailer can lead straight into a series. Make the trailer first to see whether the premise works, then use the same characters to make the first episode. Viewers who liked the trailer see the same faces and voices when the full story arrives.

Frequently asked questions

How long can an AI trailer be?

The Movie Maker offers lengths from 20 seconds up to 20 minutes. For a trailer, 30, 60 or 120 seconds is the usual pick: long enough to set up a character and a conflict, short enough to hold attention.

Is the AI trailer maker free?

Creating an account is free and new accounts get trial credits. Trailers use credits because every scene is a generated video clip with sound. The cost shows before you render, and failed renders are not charged.

Can the characters speak?

Yes. Each scene can include dialogue, and the characters speak it on screen with matching mouth movement, along with sound effects, ambience and music.

Can I make a trailer for my own book or script?

Yes. Paste the premise or a synopsis of your own story. The Movie Maker accepts a long synopsis, so you can give it the full plot and let the trailer pick the moments to tease.

Can I make a trailer for an existing movie?

Use original stories and characters. A trailer that copies a real film's characters, actors or footage can break the platform's rules and copyright law, so concept trailers should be your own idea.

What aspect ratios are supported?

Vertical 9:16 for TikTok, Reels and Shorts, and 16:9 for YouTube. Pick the ratio when you set up the movie and every scene is framed for it.

Guides