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Spiral (2021) poster
2021
global pct
16.0

Film · 2021 · Films · 2020s

Spiral

Two parallel scores from 1,010 z-qualifying reviewers and 1,037 raw-average reviewers. Cohort: Films · 2020s (7,930 peers).

16.0%
Z · Global
21.9%
Z · Cohort
Films · 2020s
10.6%
Raw · Global
16.6%
Raw · Cohort
Films · 2020s
Two scores · one item
Z-normalized · global
16.0
Z-normalized · cohortFilms · 2020s
21.9
Raw average · global
10.6
Raw average · cohortFilms · 2020s
16.6

Z-normalized corrects for reviewer bias (every reviewer re-centered onto their personal scale). Raw average uses simple mean across the broader pool including stddev=0 reviewers.

Where this title sits

0255075100

Z-normalized percentile · 7,930 peers in Films · 2020s

Mean reviewer z-score-0.480
DB1 raw-mean rating4.71 /10
DB2 raw-mean rating4.69 /10
90% CI-floor (z)-0.532
Reviewers (DB1 / DB2)1,010 / 1,037

Summary

A grizzled detective and his rookie partner investigate a series of grisly murders that appear to mimic the methods of the Jigsaw Killer, with the victims all connected to law enforcement. As the body count rises, the lead detective realizes the killer is targeting him personally, forcing him to confront corruption within his own department.

Pipeline applied to this title

The math, in this order

01
Z-score per reviewer

1,010 stddev>0 reviewers re-centered onto personal z-scale.

02
Aggregate

Mean z = -0.480. DB2 raw mean = 4.69.

03
CI-floor

90% CI-floor = -0.532. Thin samples penalized.

04
ECDF percentile

Global 16 / cohort 21.9. Z-track and raw-track ranked separately.

Cohort: Films · 2020s

Closest peers in the same cohort

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