Revealing mistake: When Jack Sparrow is chased in London, being on the carriage and looking back to his chasers, you can see the broad tire tracks of a modern vehicle in the mud. (00:16:55)
Revealing mistake: Just before he sees the droplet of water moving upwards, Jack moves three leaves to get through, but the top-right one is just held in his hand and you can see the cut stem of it. (01:42:20)
Revealing mistake: When Blackbeard threatens Jack with a pistol, he is heard cocking it, but when he holds it up to the camera we can see that it is only on half-cock. A pistol cannot be fired in the half-cock position, nor can it be loaded in the fired position, implying that either it is not loaded, or a technical error has been made by the film makers.
Revealing mistake: You can see the mermaid's underwear after she is given only a shirt by Philip. It appears to have red in it, which can be seen through the white shirt given to her.
Answer: Although this has been a running gag throughout the series, the filmmakers probably felt it quite didn't fit into the storyline or else thought the joke had simply worn itself out. It may also have been intended to be used for promoting the film and in theatrical trailers.
raywest ★
It should have been kept in. I thought it was funny.