Duplicity (2009)
Moderate
5.9 ★Why we're confident in this score
833 ratings. The score is reasonably stable but could shift up to 0.10 as more ratings come in.
The Math
Prior (global mean)m = 5.985
Prior weightC = 500
Observed ratingsn = 833
Observed averageR = 5.91
Posterior mean (Bayesian score)5.939
95% confidence interval±0.104
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 moderate films
| Metric | This film | Median (moderate) |
|---|---|---|
| Rating count | 833 | 511 |
| 95% CI | ±0.1040 | ±0.1117 |
| Films in tier | 13,073 | |
Last computed: May 16, 2026 at 01:21 AM