Film · 2009 · Films · 2000s
Case 39
Scored from 281 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: Films · 2000s (7,847 peers).
Summary
An overworked social worker takes in a ten-year-old girl she believes is being abused by her parents, only to discover the child harbors a dark and dangerous secret that puts everyone around her at risk.
Released in 2009, Case 39 is a horror, mystery and thriller film.
7,846 other films from the 2000s form the cohort it is ranked inside. Rotten Tomatoes carries a separate audience for the same title, 2,653 of whom clear the calibration test. The calibrated figure is built from 281 reviewers whose rating history varies enough to place their own average. A broader pool of 283 reviewers with two or more reviews feeds the raw-average track instead.
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 Case 39 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 281.
Cohort: Films · 2000s
