Film · 1970 · Films · 1970s
The Bird with the Crystal Plumage
Scored from 133 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: Films · 1970s (2,406 peers).
Summary
An American writer living in Rome witnesses a violent attack on a woman in an art gallery and becomes convinced he saw something crucial that he cannot quite remember. Drawn into the investigation, he and his girlfriend are stalked by the killer as he tries to identify a serial murderer terrorizing the city.
The Bird with the Crystal Plumage (1970) is a film IMDb files under the drama, horror and mystery genres.
The calibrated figure is built from 133 reviewers whose rating history varies enough to place their own average. A broader pool of 135 reviewers with two or more reviews feeds the raw-average track instead. Its in-cohort standing is measured against the other 2,405 1970s films, not against the whole corpus.
How the score was built
We compare the reviewers of this title against every other title those same people reviewed. Each review is scored relative to the reviewer's own baseline — a 7/10 from a hard grader sits well above their average, while a 7/10 from a generous grader sits below theirs. Every reviewer then counts the same, so the result is a calibrated consensus rather than a raw average.
- Global percentile
- Where The Bird with the Crystal Plumage lands against every title we rank.
- In-cohort percentile
- The same comparison narrowed to its cohort — titles of the same format released in the same decade. A 1970s film is judged against 1970s films, not against last year's streaming series. Ranked against Films · 1970s (2,406 titles).
- AI-adjusted percentile
- The same reviewer-normalized score, corrected for how much confidence the sample supports: thin samples are pulled toward the corpus average. Each title keeps the share n / (n + 53) of its measured distance from the average, where n is its calibrated-reviewer count, and the result is ranked on the same scale as the global percentile.53 is the median sample size across everything we rank. Here n is 133.
Cohort: Films · 1970s
