Film · 1989 · Films · 1980s
Back to the Future Part II
Scored from 469 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: Films · 1980s (3,141 peers).
Summary
Marty McFly and Doc Brown travel forward to 2015 to prevent Marty's future children from making life-altering mistakes. Upon arrival in this advanced future, they discover serious problems awaiting Marty's kids, forcing them to take action to save their futures.
Back to the Future Part II is a 1989 science fiction, comedy and adventure film. It runs 1h 51m and carries a PG certificate. It was made in the United States. Its comedy subtype is Action Comedy. It stars Michael J. Fox, Christopher Lloyd and Thomas F. Wilson. It was directed by Robert Zemeckis.
3,140 other films from the 1980s form the cohort it is ranked inside. 469 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 478 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 Back to the Future Part II 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 469.
Cohort: Films · 1980s
