The horse seen at the beginning of the movie was trained for two days to stand in a long boat.
The prison scene was originally supposed to be the opening for the movie.
The song Gibbs sings at the beginning of the film is taken the the book Treasure Island, one of the most famous novels about pirates.
The song Gibbs sings at the beginning of the film is taken the the book Treasure Island, one of the most famous novels about pirates.
The bone cages on Cannibal Island were actually made of styrofoam.
While in Tia Dalma's hut, Jack is seen handling a black hat with a large black feather in it. Those who know the first movie will recognize the hat as belonging to Barbossa.
A wilhelm scream can be heard when the Kraken attacks the Royal Navy ship after Will evacuates the crew.
For a dose of authenticity in the final twist at the end of the film, the actors were not told, prior to filming, that Geoffrey Rush would be appearing in the movie. They were told, before the scene was shot, that the person coming down the stairs would be Anamaria (Zoe Saldana) from Pirates of the Caribbean: The Curse of the Black Pearl (2003); the looks of surprise on their faces as Rush descends are genuine.
The line delivered by Will Turner "I could do this all day" was improvised by Orlando Bloom.
Deleted footage of Tortuga from Pirates of the Caribbean: The Curse of the Black Pearl (2003) was added to the final cut of this movie.
During filming, the cast and crew had to be evacuated to Los Angeles because of Hurricane Wilma.
Gore Verbinski did not tell the cast what was to happen with the bone cage. He wanted to get their natural reactions when it swung from side to side.
While the script was being written, Keira Knightley suggested the scene between Jack and Elizabeth where Jack is handcuffed to the ship.
Keira Knightley had to wear hair extensions because she had cut her hair short for her role in Domino (2005).
The Black Pearl was never on the beach of the cannibal island. It's a model digitally added the the shots, complete with digital water splashes.
This film was banned in China for its depiction of cannibalism.
This film was shot back-to-back with Pirates of the Caribbean: At World's End.
Keith Richards was set to cameo as Jack's father, but had to pull out at the end. It's been said by Depp that Richards was his inspiration for the character (however, look for him in the third movie).