Blog · Behind the film · 24 Oct 2026
1,600 unread bookmarks to zero: how we fit ZeroMark into six seconds
One continuous shot, four short lines, no voice. The whole product, start to finish, before most launch videos have shown their logo.
ZeroMark is a bookmark organizer for X. It reads the posts you've saved, sorts them into topics like AI, startups and finance, and lets you clear them one at a time with a keystroke. Its own headline says the problem better than we could: you saved it, and you never read it. We made ZeroMark a free six-second demo, and its founder asked us to share it. Here it is, then how it's built.
Start with the sentence, not the scenes
Before anything moved, we wrote the film as four lines, short enough to read with the sound off:
- You saved it. Never read it.
- ZeroMark sorts them by topic.
- Clear each one with a key.
- Saved. Sorted. Read.
Problem, how it works, the action, the result. Each line gets about a second and a half. If a line can't be read in that time, it's too long for a six-second film.
0–1.5 seconds: make the problem countable
The film opens on a scatter of 1,600 small marks, one per saved post, colored by topic. A counter under the line reads "1,600 unread." A pile of bookmarks is vague. A number is a problem you can feel, and it sets up the ending before the viewer knows there is one.
1.5–2.5 seconds: the product's first job, shown
The same marks fly into neat stacks, one per topic: AI, startups, biotech, engineering, finance. These are ZeroMark's own topic names, not invented ones. Nothing new appears on screen; the mess you just saw turns into order. That's the whole sorting feature, explained without a word about how it works.
2.5–4 seconds: the one action
One save lifts out of its stack as a card, with three keys under it: D done, X let go, S snooze. Those are ZeroMark's real shortcuts. One gets pressed, and the counter ticks from 1,600 to 1,599. That single tick is the moment the viewer understands what using ZeroMark feels like.
4–6 seconds: end on the product's finish line
The counter runs down to "0 left", the line reads "Saved. Sorted. Read.", and the film lands on the ZeroMark mark, one button, "Start free", and the address. Zero is the product's promise, so zero is where the film ends.
The rule: if your product has a finish line, make it your last frame.
Why one shot, with no cuts
Every object becomes the next one: the scatter becomes stacks, a stack gives up a card, the card clears, the counter hits zero, and the film settles on the logo. With no cuts, the viewer never has to find their place again, and the eye follows one thread from the first frame to the last. There's no voice. A soft score runs underneath, with a small sound on each change, so the film works muted and gets better with sound on.
What we left out
ZeroMark does more than this. It can send what you keep to Notion or Obsidian, turn a month of saves into a podcast, and answer questions about what you saved. All real features, and none of them are in the film. Six seconds holds one idea. The other features are what people find after they click "Start free".
Want one for your product?
We're making these free for founders who are launching, and sharing them (with your OK) on our Demos page. Request yours, or send us your link.