Continuity mistake: During the mass hanging, in the close-up of the boy's fingers fiddling with the coin he has clean hands and long untrimmed nails, but in the wideshot the boy's hands are filthy and his fingernails are bitten short. (00:02:40)
Continuity mistake: At the front door of Sao Feng's, after Elizabeth removes her hat, it cuts to the removal of her decorative vest (totally skipping her jacket), revealing her weapons' holster harness underneath, and she then tosses her vest at Sao Feng's man. Problem is the man doesn't catch her vest, he actually catches her empty weapons' holster harness. But, in the next few shots she's still wearing that holster harness, as she removes her lovely weapons. (00:08:35)
Continuity mistake: In the scene on the Dutchman where Bootstrap runs through the Admiral, he stabs him from front to back, but when it shows the Admiral lying on the deck he is run through from back to front. (01:27:15)
Continuity mistake: When Elizabeth is giving her speech about the crew of the Pearl, her arm is either straight or bent depending on the angle. (01:56:00)
Continuity mistake: Just before Pintel and Ragetti are about to fire Jack, the monkey, out of a cannon, the monkey and barrel point out of a partially destroyed gun port, with its hinged port lid missing. Once Ragetti lights it, in the close-up just as Jack blazes out, the frame of the gun port is perfectly intact, as is its hinged port lid above it. (02:15:45)
Continuity mistake: On the small sand spit, when Jack, Elizabeth and Barbossa meet with Will, Beckett, and Davy Jones, the leather cuff Jack wears on his right hand actually disappears and reappears twice during the meeting.
Continuity mistake: When Beckett boards the Dutchman and speaks to Jones, he has very noticeable dark facial stubble, but bizarrely, in his next close-up he is actually clean shaven, his wig curl has shrunk and his eyebrow hair is neater.
Continuity mistake: The cord necklace Will wears, which has several things dangling from it - particularly a distinctive white shell, flips round the opposite way between shots within a scene, several times during the film. For example, before and after the maelstrom, including the ceremony Barbossa performs.
Continuity mistake: The worn areas of Jack's leather hat drastically changes throughout the film. Additionally, the hat has a threaded 'X' on both its right and left side. In numerous close-ups extra thread holes are visible in different areas near each of these Xs; such as in the Locker, when Jack lies on the ground as the Pearl passes by and later, on the little island, before Jack switches places with Will. In other shots those extra holes are gone, such as when Jack sets sail for the Fountain of Youth. The actual sizes of the Xs also change.
Continuity mistake: After Will escapes the brig aboard the Pearl, as he stands on deck with Jack, the rope wound round the dead soldier lying atop the barrel differs depending on camera angle.
Continuity mistake: When Barbossa and Elizabeth go to meet Sao Feng, she is asked to get rid of all her weapons. When she places the homemade grenade on the table, it gets placed on the edge of a red cloth where you can see the table at the end of the cloth, yet when she places her final weapon, the red cloth is now almost completely covering the table.
Continuity mistake: When Barbossa is talking to Calypso on the Black Pearl, right after he says, "Masters Pintel and Ragetti, take this fishwife to the brig," there is a shot of Pintel and Ragetti leading her down the deck's steps. The Black Pearl is pitching strongly up and down. In the next shot, where Barbossa looks at and flexes his hand, the ship is barely pitching at all.
Continuity mistake: Aboard the Dutchman, when Jones's crew shout, "The Admiral's dead," Norrington's black scabbard lies conspicuously at his right side, but when he stabs Jones the scabbard is gone.
Continuity mistake: When Will walks toward the shoreline, Elizabeth runs to join him and both leave tracks in the sand. When Elizabeth is alone, as the Dutchman disappears, the trail in the sand distinctly differs - not do to water or wind.
Continuity mistake: When Will is at Sao Feng's, the rope binding his wrists differs depending on camera angle.
Continuity mistake: Aboard the Dutchman, when the shot pans towards Jones as he plays the organ, the silver musical box's point faces left, but in the next close-up it faces right.
Continuity mistake: The size of Beckett's wig curls change between consecutive shots of different angles, such as when he boards the Dutchman and speaks to Jones.
Continuity mistake: When Jack begins to speak to Captain Teague, Teague's left hand is under the guitar frets, but in the shot facing Jack that hand rests atop the guitar, then when Teague says, "It's not just about living forever, Jackie," his left hand is under the frets again.
Continuity mistake: At the meeting of the brethren, when Ragetti collects the pieces of eight, the items in the bowl and the red cloth change positions between shots.
Continuity mistake: At Sao Feng's, when Pintel looks up under the wood planks, in the shots from below the husky fellow's toes are seen perpendicular to the floor boards and its gaps in between; however, in the shots from above, the floor boards run parallel to his toes/feet.
Answer: He agreed to do a job in exchange for eternal life, with a few limitations. If he refused to do that job he'd be cursed until he fulfilled his duties, but that doesn't excuse him from the details of the previous enchantment. He didn't simply choose not to walk on land, he couldn't.
Phixius ★