Dating for people with a Letterboxd account

Your diary is a personality test. The person who has logged 400 films this year, rates Tarkovsky a consistent 4.5, and has a list called "Films That Broke Me" is telling you exactly who they are.

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How it works for film people

Connect your accounts. Letterboxd, Trakt, IMDb - we pull your diary, ratings, watchlists, and favourite directors. Your viewing history stays private. Only taste signals are used.

The matching engine understands film at multiple levels:

A film has a director, belongs to genres, features actors, comes from a country/era
Matching happens across the entire hierarchy - shared films, shared directors, shared genre sensibilities
If you have rich film-level data but no explicit director affinity, we compute it by aggregating your ratings across their filmography
Cross-platform: your Letterboxd diary and their Trakt history resolve to the same canonical titles

Ratings are the real signal

Two people both watched Parasite. So did everyone. NicheWeight for Bong Joon-ho at this point? About 0.35.

Mainstream

Bong Joon-ho

Popularity 65 → NicheWeight 0.35

Niche

Céline Sciamma

Popularity 8 → NicheWeight 0.92

Sentiment matters. Both having "watched" a film is presence. Both rating it highly is affinity. If you gave Portrait of a Lady on Fire 5 stars and they gave it 2.5, that overlap disappears. The algorithm uses the minimum of both ratings as a sentiment factor.

What gets scored

Shared directors weighted by Letterboxd popularity - obscure auteurs score higher than blockbuster directors

Star ratings on shared films - the sentiment factor filters out shallow overlaps where one person loved it and the other did not

Genre affinity - not just "drama" but arthouse, slow cinema, body horror, essay film, New Hollywood

Watches per director - one Denis Villeneuve film is awareness; logging the full filmography is devotion

List overlap - shared list curation ("Comfort Films", "Perfect Endings", "Films My Friends Have Not Heard Of") signals shared values

Shared dislikes - directors you both rate below 2.5, genres you both avoid. A mutual disinterest in superhero films is a real compatibility signal

Viewing pace - are you both logging 5 films a week or savouring one a fortnight? Lifestyle alignment

Your four-star heart

"You share 8 directors with a combined Letterboxd popularity under 15%, your genre profiles overlap 79% on arthouse and slow cinema, and you have both rated 12 of the same films within 0.5 stars of each other."

Not "you both like films." The actual diary data.

The algorithm understands film nerds

It knows that someone who has logged 40 films by a single director has a different relationship with cinema than someone who watches whatever is trending. It weights accordingly.

Engagement depth (watches per director, total films per genre) and sentiment (your actual star ratings) combine to separate "I have seen it" from "this director changed how I see the world."

Integrations

Letterboxd

Diary, ratings, watchlist, lists, favourite films, reviews

Trakt

Watch history, ratings, collections

IMDb

Ratings, watchlist (where export/API permits)

All opt-in. All revocable. Your diary is never shown to matches - only the compatibility signals.

Affinity Atlas is in development

No matching is live yet. If you think Letterboxd compatibility should be a dating signal - or you have opinions about how film taste should be weighted - get in touch.

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