Factual error: The pirates' map shows a drawing of Tower Bridge, which Pirate Captain sees through the telescope moments later. Construction of Tower Bridge started in 1886, and it was completed in 1894. Queen Victoria was 73 when Tower Bridge was completed, whereas she is in her late twenties or mid thirties here. The sign setting the film in 1837 also makes no sense given this timeline. (00:25:20)
Factual error: When the Pirates and Darwin land in London, the Pirates disguise themselves as Girl Guides, but Robert Baden Powell didn't found the Girl Guides until 1910, over 70 years after the film is set.
