Film · 2020 · Films · 2020s
David Attenborough: A Life on Our Planet
Scored from 156 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: Films · 2020s (7,930 peers).
Summary
At 93, David Attenborough delivers what he calls his witness statement: an account of how the living world has changed across his own lifetime and broadcasting career. The film moves decade by decade, marking each stage with the world's human population, atmospheric carbon and the share of wilderness remaining, and frames the argument from the abandoned city of Pripyat beside Chernobyl. Its second half sets out proposed remedies, among them no-fish zones to let the ocean recover, a shift to renewable energy and plant-heavy diets, restored forests, and slowing population growth by raising living standards. A Netflix feature documentary directed by Alastair Fothergill, Jonnie Hughes and Keith Scholey.
David Attenborough: A Life on Our Planet is a 2020 biography and documentary film. It runs 1h 23m and carries a PG certificate. Its country of origin is listed as the United Kingdom.
Rotten Tomatoes carries a separate audience for the same title, 35 of whom clear the calibration test. The calibrated figure is built from 156 reviewers whose rating history varies enough to place their own average. A broader pool of 179 reviewers with two or more reviews feeds the raw-average track instead. The cohort it is ranked inside is 2020s films — 7,930 of them.
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 David Attenborough: A Life on Our Planet 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 · 2020s (7,930 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 156.
Cohort: Films · 2020s
