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)
Audio problem: When The Pirate Captain says "This time, it's pay day", his mouth doesn't quite match up with what he is saying when he gets to "it's pay day". (00:16:05)
Other mistake: When Charles Darwin is on the plank, he is pushed into the water. Yet he is completely dry when he is back on the ship. (00:23:00)
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.
Continuity mistake: On "Ham Nite" The Pirate Captain starts doing his dance with a slice of ham on his sword. But by the time he does the splits, the slice of ham is no longer on his sword, but now on his plate. (00:03:50)
