Rome has been a film subject since the beginning of cinema, and the relationship between Hollywood’s Rome and the historical record is complicated in ways that go beyond simple error-counting. Some of what cinema gets wrong is deliberate simplification for narrative clarity. Some is period convention — the sandal epics of the 1950s reflected Cold War anxieties as much as ancient history. Some is genuine incomprehension of a world sufficiently distant that even educated filmmakers cannot feel its difference. And occasionally, something unexpected gets it exactly right in ways that the filmmakers may not have consciously intended.