Film · 2013 · Films · 2010s
12 Years a Slave
Scored from 786 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: Films · 2010s (13,059 peers).
Summary
Solomon Northup, a free Black man from New York, is kidnapped and sold into slavery in Louisiana. Over the course of twelve years, he must navigate the brutal realities of plantation slavery while attempting to maintain his dignity and secure his freedom.
12 Years a Slave is a 2013 drama and historical film starring Chiwetel Ejiofor, Michael Fassbender and Lupita Nyong'o. Its country of origin is listed as the United States. Its certificate is R. It runs 2h 14m. Steve McQueen directed it.
The cohort it is ranked inside is 2010s films — 13,059 of them. The calibrated figure is built from 786 reviewers whose rating history varies enough to place their own average. A broader pool of 826 reviewers with two or more reviews feeds the raw-average track instead. Rotten Tomatoes carries a separate audience for the same title, 5,173 of whom clear the calibration test.
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 12 Years a Slave 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 · 2010s (13,059 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 786.
Cohort: Films · 2010s
