Film · 1978 · Films · 1970s
Superman
Scored from 606 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: Films · 1970s (2,406 peers).
Summary
As the planet Krypton faces destruction, scientist Jor-El sends his infant son Kal-El to Earth, where he is raised by the Kents as Clark. Growing up to discover his extraordinary powers, Clark moves to Metropolis and becomes mild-mannered reporter at the Daily Planet, falling for colleague Lois Lane while moonlighting as the superhero Superman. He soon must thwart the megalomaniacal schemes of criminal mastermind Lex Luthor.
Released in 1978, Superman is an action, adventure and science-fiction film.
Its in-cohort standing is measured against the other 2,405 1970s films, not against the whole corpus. The calibrated figure is built from 606 reviewers whose rating history varies enough to place their own average. A broader pool of 623 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 Superman 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 · 1970s (2,406 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 606.
Cohort: Films · 1970s
