Film · 1971 · Films · 1970s
Gamera vs. Zigra
Scored from 26 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: Films · 1970s (2,406 peers).
Summary
Giant flying turtle Gamera battles an alien invader named Zigra that threatens Earth.
Gamera vs. Zigra (1971) is a film IMDb files under the adventure, family and science-fiction genres. The runtime is 87 minutes. Its listed language is Japanese. It was made in Japan.
The cohort it is ranked inside is 1970s films — 2,406 of them. A second review pool sits behind it as well: 31 Rotten Tomatoes reviewers clear the same calibration test, and Rankquant scores them separately. Only 26 of its IMDb reviewers rate with enough spread for a personal baseline to be measured, so the calibrated figure rests on a thin sample; a broader pool of 26 reviewers with at least two reviews 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 Gamera vs. Zigra 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 26.
Cohort: Films · 1970s
