Film · 1985 · Films · 1980s
Invasion U.S.A.
Scored from 116 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: Films · 1980s (3,141 peers).
Summary
A retired CIA agent returns to action when Soviet-backed forces attempt to invade the continental United States through multiple coordinated military strikes.
Released in 1985, Invasion U.S.A. is an action and thriller film. Its country of origin is listed as the United States. It runs 1h 47m and carries an R certificate.
The calibrated figure is built from 116 reviewers whose rating history varies enough to place their own average. A broader pool of 116 reviewers with two or more reviews feeds the raw-average track instead. Its in-cohort standing is measured against the other 3,140 1980s films, not against the whole corpus.
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 Invasion U.S.A. 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 116.
Cohort: Films · 1980s
