You pick your five favourite films (ranked) and your city. Once a week it groups people into small casts of about four, mostly by shared taste, and opens a private group chat with an icebreaker based on the films you have in common.

A few things I cared about:

- Free, 18+ only

- No public profiles, no photos, no one-to-one messages, no ads

- You can report, block or leave any time

- It runs in the browser; add it to your home screen if you like

It hasn't launched yet. A city opens once 20 people have joined, so right now it's a waiting list. I'd rather be upfront about that than pretend it's busy.

If it sounds like your kind of thing, it's at cinebor.vercel.app. Honest feedback welcome, including 'this would never work.'