Film · 1989 · Films · 1980s
Black Rain
Scored from 139 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: Films · 1980s (3,141 peers).
Summary
Two New York City detectives escort a Yakuza prisoner back to Osaka, but lose him to his criminal associates upon arrival. Forced to navigate an unfamiliar culture and an uneasy partnership with a Japanese police officer, the brash American cop pursues the gangster through the neon-lit underworld to recover him and uncover a counterfeiting operation.
Black Rain is a 1989 action, crime and drama film.
The cohort it is ranked inside is 1980s films — 3,141 of them. 139 IMDb reviewers rate with enough spread for a personal baseline to be measured, and those are the ones the calibrated score reads; a separate, broader pool of 142 reviewers with at least two reviews each feeds the raw-average track.
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 Black Rain 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 · 1980s (3,141 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 139.
Cohort: Films · 1980s
