How ratings work

A single number is a shortcut that hides disagreement. So on Zurmo you always see the source next to the number: IMDb (out of 10), Rotten Tomatoes critic score (a percentage), and TMDB (out of 10). If a source hasn't met our quality bar for a title, that rating is simply unavailable — it is never shown as zero, and we never invent a number to fill a gap.

IMDb

Shown out of 10, with vote volume, from the IMDb licensed dataset.

Rotten Tomatoes

Critic and audience scores shown as separate percentages, from the RT licensed feed.

TMDB

Shown out of 10, with vote volume, from the TMDB API.

Zurmo consensus

Our own 0–100 score, always labelled as ours and never presented as a third party's number.

The Zurmo consensus

We also publish one number of our own: the Zurmo consensus. It is computed from the eligible source ratings, each normalized to a 100-point scale, and weighted — 35% IMDb, 30% RT critics, 20% RT audience, 15% TMDB. If a source is missing or hasn't met minimum volume, the remaining weights are scaled proportionally, so a title with only IMDb and TMDB still gets a fair consensus.

Our consensus is our own editorial metric. It is not labeled as, and must not be confused with, any third party's score.

Minimum volume

A rating with two votes tells you almost nothing, so we enforce minimums before a source counts toward the consensus: at least 5,000 IMDb votes, 500 TMDB votes, 20 RT critic reviews, or 2,500 RT audience ratings. Sources below these thresholds are excluded (with a reason recorded) rather than diluted.

Sorting

When you sort by a rating, titles that genuinely have that rating rank above titles that don't — missing ratings sort last, never first, and are never treated as zero.