Film · 2006 · Films · 2000s
Blood Diamond
Scored from 580 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: Films · 2000s (7,847 peers).
Summary
A South African mercenary and a Mende fisherman team up to search for a large diamond in war-torn Sierra Leone, navigating the brutal conflict diamond trade. Their quest becomes intertwined with efforts to expose the role of conflict diamonds in funding rebel militias.
Blood Diamond is a 2006 drama, thriller and war film. It runs 2h 25m and carries an R certificate. It stars Leonardo DiCaprio, Djimon Hounsou and Jennifer Connelly. It was directed by Edward Zwick. It was made in the United States.
7,846 other films from the 2000s form the cohort it is ranked inside. A second review pool sits behind it as well: 28,830 Rotten Tomatoes reviewers clear the same calibration test, and Rankquant scores them separately. 580 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 608 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 Blood Diamond 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 · 2000s (7,847 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 580.
Cohort: Films · 2000s
