Shutter Island (2010)
High
8.2 ★Why we're confident in this score
25,772 ratings, tightly clustered. This score is unlikely to move more than 0.02 with new ratings.
The Math
Prior (global mean)m = 5.985
Prior weightC = 500
Observed ratingsn = 25,772
Observed averageR = 8.2
Posterior mean (Bayesian score)8.156
95% confidence interval±0.0188
Formula: posterior_mean = (n / (n + C)) × R + (C / (n + C)) × m. The confidence interval narrows as more ratings come in. Films with few ratings are pulled toward the global mean.
This film vs. typical high films
| Metric | This film | Median (high) |
|---|---|---|
| Rating count | 25,772 | 8,223 |
| 95% CI | ±0.0190 | ±0.0365 |
| Films in tier | 977 | |
Last computed: May 16, 2026 at 01:21 AM