Revealing: The Acheron fires many devastating blows on the Surprise and the effect is visible in close-ups and a wide shot. However, after Mr. Mowett yells, "Relieving-tackles on the tiller! You men collect the wounded!" there is another wide shot of the Acheron in the foreground and Surprise in the distance. In this shot Surprise has NO damage whatsoever!

Factual error: At the end of the film, Aubrey sends the de-masted prize Acheron to Valparaiso, Chile, for repairs. Valparaiso is 3,000 miles from the Galapagos Islands, and, in 1805, was a tiny village without appropriate port facilities to dock or repair anything as large as a frigate. Valparaiso did not become a major port until after Chilean Independence from Spain (1810). Guayaquil (in modern Ecuador) would have been a more appropriate choice, being about 750 miles from the Galapagos, and being a major port in 1805. The choice between the two ports was moot, anyway, since both municipalities were Spanish territory in 1805, and thus were allied with the French, and hostile to the British.

Factual error: In the brief shot of the Surprise underway after entering the Pacific, seen from dead astern and from above, the ship is leaving a respectable wake but is not heeling with the wind at all and the sails are hanging slack as though completely becalmed.

Factual error: Near the end of the film when the crew are playing cricket on the island the camera pans out to show the batsman in front of three stumps. However cricket didn't start to be played with three stumps until at least 50 years after the film is set. At the time of the movie time people only played with two.

Revealing: After a close-up of the drawing of one-armed Lord Nelson, Killick opens the lid of the steaming food for Jack in a close-up, just before Killick says, "Oh, here we go again. Scrape, scrape, screech, screech." Later, after Pullings takes command of Acheron, Jack tunes up his violin and Killick says, "Here we go again," in another close-up of the steaming food for Jack. Every detail of the food shown in both close-ups is exactly the same - obviously shot at the same time.

Factual error: After Stephen Maturin comes back with a small portion of findings from the Galapagos Islands, he presents a stick insect to Captain Aubrey, but stick insects (Phasmids) don't exist in the Galapagos Islands.