A trailer is not a short film.
It is a sequence.

The cold open earns everything else: The first three to five seconds decide whether the rest gets watched, and on a feed they decide it before any dialogue lands. Put your strongest image or your strangest sound first and state the genre immediately. A slow logo build in front of the hook is the most common way a good trailer dies.

The turn is a music event: The trailer stops introducing and starts selling on a drop, a stab, or a hard silence. Mark that moment across the board and check what shot sits on it. If the turn is at the halfway point of a ninety second cut you are usually about fifteen seconds late.

The montage has to actually escalate: Every shot after the turn should be bigger, faster, or stranger than the one before. Laid out as a row you can see the escalation flatten, which is the failure nobody catches inside a timeline because you never see the whole shape at once.

Spend the money shots deliberately: You have two or three images that are genuinely worth the ticket. Mark them on the board and place them on purpose, usually one late in the setup and one on the drop. Burning all three in the first twenty seconds leaves you nothing to end on.

Drag a shot and see the shape change: Most trailer problems are order problems. On a canvas you move a card and read the new sequence immediately, rather than rippling a timeline, rebalancing audio, and rendering a preview to find out that it was worse.

Keep the alternate cuts on the board: Park the version with the dialogue tease and the version that is pure montage side by side in their own regions of the canvas. Comparing two orders next to each other is a real conversation. Describing them in an email is not.

Version for platform without starting over: The ninety second cut, the thirty second spot, and the vertical fifteen are the same shots at different densities. Lay them as parallel rows and you can see exactly which shot survives all three, which is usually the one that belongs in the poster.

The board reads at a glance: Zoom out and a producer, a marketing lead, or a sales agent can take in the entire trailer in about four seconds, which is roughly how long they will give it anyway.

Grab frames from YouTube and Vimeo: Pull frames directly from an online cut of your own film or from reference material and pin them onto the shot cards. This is the difference between a trailer board that reflects the actual movie and one that reflects what you remember of it.

Flag the shots that do not exist yet: Proof-of-concept and pitch trailers are made mostly of things you have not filmed. Mark those cards clearly, sketch them with the pen tool, and the board doubles as the shoot list for the pickup day.

Keep the rights and clearance notes with the shot: Pin the note about the unlicensed track, the extra who never signed, or the brand visible in frame directly on the card it affects. Clearance problems found on the board are cheap. Found in the final mix, they are not.

Everything the cut draws on, in one place: Drag in stills, scripts, PDFs, key art, and links. Reference trailers you are chasing sit beside your own row, which makes tone notes concrete instead of adjectival.

View-only links, no account required: Send a link and the director, the producer, or the distributor opens the whole trailer in a browser. Getting agreement on the order before the edit starts saves the version of this project where you recut it four times.

Comments on the shot they are about: Feedback lands on the card rather than in a thread of timecodes. Anyone a paid member invites to a board joins free today, so the whole trailer team can work on one canvas.

Export for the edit suite: Export the board as a high-quality image or PDF and keep it open on the second monitor while you cut. Storyflow plans the trailer, and Premiere, Resolve, or Avid cuts it. The board is the map, not the timeline.