Factual error: The governor of the island claimed the bank safe (roughly 2 meters square on a side and with walls about 13 cm thick) weighed "an imperial ton." A safe of this size would weigh nearly 22.5 imperial tons.
Factual error: The British Ship of the Line is flying a version of the British Union Jack that was not adopted until 1801. The story is supposed to take place between 1720 and 1750.
Continuity mistake: After the bald witch walks towards a wall with stars painted on them, there's a shot of Henry threatening Jack with his sword. The grip on the sword and the position of the arm are not continuous between shots.
Answer: It would have been considered "risque" to see a woman's ankles. Well-bred, modest ladies always wore clothing that covered most of their bodies.
raywest ★