R0029/2026-03-27/Q004 — Assessment

Research	R0029 — Plural Voice Attribution
Run	2026-03-27
Query	Q004

BLUF

Akira Kurosawa made three films based on or inspired by Shakespeare plays: Throne of Blood (1957, Macbeth), The Bad Sleep Well (1960, Hamlet), and Ran (1985, King Lear). This is the settled scholarly consensus. The Bad Sleep Well's connection to Hamlet is contested — Kurosawa maintained a "loose grip" on the source — but the weight of critical opinion includes it as an adaptation.

Probability

Rating: Almost certain (95-99%) that the complete list is three films

Confidence in assessment: High

Confidence rationale: Multiple independent authoritative sources (BFI, Criterion Collection, academic publications) converge unanimously on the same three films. No source identified a fourth. The only debate concerns whether The Bad Sleep Well should be classified as an adaptation or merely Shakespeare-influenced, but even this debate operates within the three-film framework.

Reasoning Chain

1. BFI identifies three Kurosawa Shakespeare adaptations: Throne of Blood (Macbeth), The Bad Sleep Well (Hamlet), Ran (King Lear). [SRC01-E01, High reliability, High relevance]
2. Criterion Collection provides detailed analysis of The Bad Sleep Well as Hamlet-inspired, titling their essay "Shakespeare's Ghost." They note specific character and plot parallels. [SRC02-E01, High reliability, High relevance]
3. Multiple popular and scholarly sources independently confirm the same three-film list with no additions. [SRC03-E01, Medium reliability, High relevance]
4. FACT: The Bad Sleep Well's Hamlet connection is contested. The BFI notes "commentators have argued that it merely shares common elements." Criterion notes Kurosawa's "loose grip" on the source. Despite this, both include it.
5. JUDGMENT: The complete list is three films. The scholarly consensus is clear and consistent across authoritative sources.

Evidence Base Summary

Source	Description	Reliability	Relevance	Key Finding
SRC01	BFI analysis	High	High	Three films; Bad Sleep Well contested
SRC02	Criterion Collection	High	High	Detailed Hamlet parallels confirmed
SRC03	Multiple popular sources	Medium	High	Unanimous three-film consensus

Collection Synthesis

Dimension	Assessment
Evidence quality	Robust — authoritative film criticism institutions
Source agreement	High — unanimous on three films
Source independence	High — BFI, Criterion, and multiple popular sources are independent
Outliers	None

Detail

This is a straightforward factual query with strong consensus. The only nuance is the degree of The Bad Sleep Well's debt to Hamlet, which is an interesting scholarly question but does not change the answer.

Gaps

Missing Evidence	Impact on Assessment
Kurosawa's own statements about Shakespeare influence	Would clarify contested Bad Sleep Well connection
Japanese-language scholarship on Kurosawa-Shakespeare	Western-language sources may not capture full Japanese critical perspective

Researcher Bias Check

Declared biases: No researcher profile provided for this run.

Influence assessment: No significant bias risk for a factual filmography query.

Cross-References

Entity	ID	File
Hypotheses	H1, H2, H3	hypotheses/
Sources	SRC01, SRC02, SRC03	sources/
ACH Matrix	—	ach-matrix.md
Self-Audit	—	self-audit.md