How CFDb Ratings Work

Every film's bells answer two questions at once: is it good cinema, and can it be recommended in good conscience. Here's exactly how a film earns its bells.

Three sources, one score

Bells run from 0 to 5 in half steps — the scale you rate on and the scale you see. Behind them sits a composite built from up to three sources, weighted by how much editorial trust each carries:

CFDb Critics

weight ×4

CFDb Viewers

weight ×2

TMDB Community

weight ×1

A film only uses the sources it actually has — a hidden gem with no CFDb reviews yet still gets bells from its TMDB score, and the balance shifts toward our critics and viewers as their reviews arrive.

Why one vote can't peg a film

A single five-bell rating from one enthusiastic viewer shouldn't outrank a classic with a thousand considered ratings. So before averaging, each source is statistically pulled toward the catalog's overall average — gently when many ratings back it, strongly when only a few do. (It's the same “Bayesian” approach IMDb uses for its Top 250.)

The practical effect: bells are earned by consensus. New films start near the middle and move as real ratings accumulate — which is also why rating films yourself genuinely matters.

The fifth bell is earned

The scale isn't linear at the top. Everything up to a strong consensus maps onto the first four and a half bells; the fifth bell is reserved for films whose composite clears a high excellence bar — andthat carry a Catholic moral review. A film nobody has morally assessed can be excellent cinema, but CFDb won't put its full five-bell endorsement on it sight unseen.

Excellence — great cinema, morally reviewed

Very good — well worth your evening

Solid — good with caveats

Weak — or morally capped (see below)

Not yet rated — no scores at all yet

The moral gate

This is what makes CFDb bells different from every other rating. Films carry a Catholic classification in the tradition of the USCCB's system — A-I (general audiences) through A-III (adults), L (limited adult audience), and O (morally offensive). The classification caps the bells, no matter how acclaimed the film is:

L — capped at four bells: real artistry, but problematic elements deny it the excellence bell
O — capped at two bells: whatever its craft, CFDb cannot recommend it
No classification yet— the top bell is withheld at four and a half until the film carries a Catholic moral review. This is the cap you'll see most often; it lifts the moment a classification arrives.

So when you see an acclaimed film sitting at two bells, that's not a bug — it's the system telling you the two questions came apart: fine filmmaking, but not something we can ring all the bells for.

Your ratings move the bells

Rate any film in half-bells right on its page, or write a full review with artistic, entertainment, and faith & morals scores. Viewer ratings carry twice the weight of the TMDB community — and if you become a CFDb critic, four times.

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