The geography of what is documented
Nine cells carry data. The rest have not been extracted yet, and saying so is more useful than leaving them blank.
| 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | |
|---|---|---|---|---|---|---|
| USA | · | · | · | 3,603 | 2,394 | 3,032 |
| Italy | · | · | · | 1,330 | 2,238 | 2,132 |
| Japan | · | · | · | 740 | 1,135 | 705 |
| France | · | · | · | · | · | · |
| India | · | · | · | · | · | · |
| Nigeria | · | · | · | · | · | · |
Co-production, by country
The share of films with more than one country of origin rises until the mid-sixties and then falls. Coverage of title and runtime stays flat across the same period, so the curve is unlikely to be an artefact of documentation: better-documented years would push it up, not down.
Films per year
Method
These are films documented in Wikidata, not films produced.Every figure is drawn from a dated, immutable snapshot, and every measure that varies by stratum is published with its own coverage.
Runtime coverage runs from 89% in Italy in the 1950s to 35% in Japan in the 1960s. A median computed over a third of a stratum is not the same statement as one computed over nine tenths, which is why the two are never compared here without both numbers in view.
A film with several countries of origin is counted once for each of them, so the country totals in the matrix do not sum to the number of films.