Continuity mistake: When Governor Swann is leaning on the desk next to the drawer with the severed hand, his right hand is behind his back. In the close-up shot when he opens the drawer, his right hand is on his stomach, but in the wide shot his right hand is behind him again. (02:02:10)
Continuity mistake: As Will first walks through the crowd at Jack's hanging, there is a wide shot. Then there is a semi close-up of Will and the surrounding people. Next there is a shot taken from behind Will, still showing some people around him. In all three shots as Will stands still, some of the people's positions differ and some of the people are different, in all three shots. (02:04:40)
Continuity mistake: At Jack's hanging, there is a shot of Mr. Cotton's parrot landing on the flag post, that Mullroy is holding. In this shot, there is a gruff looking man and a woman with her hand on her hip, standing there. Those two particular people are in the middle of the crowd near Will, when Will first walks through the crowd, to stand in front of the scaffolding. (02:04:45)
Continuity mistake: Will walks through the crowd at the hanging and stands in front of the scaffolding looking at Jack, as the official reads the list of Jack's crimes. The rope wound around the beam is wound differently here than in the close-up shots. The rope that leads up to the noose is in front of the beam. In the next semi close-up of Jack, when he smiles at the hangman, the rope that leads to the noose is now on the opposite side of the beam. (02:04:50)
Continuity mistake: At Jack's hanging, as the official says, "Impersonating an officer in the Spanish Royal Navy," in this far shot, we see the scaffolding and the Marines walking on wall behind. In the next shot, he says, "Impersonating a cleric of the church of England," and we still see the Marines. Then in the next shot, a close-up of Jack, we also see the Marines. These are successive shots, yet the Marines are NOT in positions of continuous walking. (02:05:05)
Continuity mistake: At Jack's hanging, after Will sees Mr Cotton's parrot he walks over to Norrington, Elizabeth and her father. In the wide shot, when he says, "Governor Swann," the woman in the grey hat, white shawl, and floral pattern dress, who stands behind him to his right, in the next close-ups, is not in this wide shot. (02:05:40)
Continuity mistake: At Jack's hanging, Will draws his sword and shouts, "Move!" The next shot is of the crowd in front of him parting and there is a clear view of the hanging scaffolding. Then in Will's next shot, we see the same crowd from the front, parting again as Will throws the sword into the falling trap door. (02:06:15)
Continuity mistake: At Jack's hanging, when Elizabeth "faints" her hat's wide white ribbon hangs down both sides - joined at the back of her neck. When she lifts her head, to witness Jack's rescue in progress, the ribbon is now gone from the right side of her hat and hangs loose at her left shoulder. However, when she looks over at her father, the ribbon is intact once again. (02:06:15)
Continuity mistake: The rope leading to Jack's noose is wound around the wood beam six times in most shots. When Norrington runs shouting, "Move," as Will is duelling with the hangman and his axe, the rope is seen behind the hangman and it's wound only five times. In their next close-up, it's six again. (02:06:45)
Continuity mistake: The hangman hits the rope on the wood beam, but the blade doesn't embed itself in the wood, the way it's in the subsequent shots. After Norrington looks up to see the hangman's about to fall on him, in the next front shot, Will pushes the hangman toward the crowd and he starts to raise his arms. Here the axe is embedded perfectly perpendicular in the wood beam. As Jack and Will run with the rope, the axe is seen behind them and it's not at all embedded in the wood as in the earlier shot. This is not because of the angle of the camera. (02:06:50)
Continuity mistake: As Will duels with the hangman he knocks Will's sword out of his hand. In that shot, Will is standing in front of Jack near the lever and the camera pans down as the sword hits the floor. Will doesn't move and in the next shot, Will is now standing to Jack's immediate left near the rope. This was either cut from a longer shot or set up in the second shot deliberately. This has nothing to do with the angle of the camera. (02:06:50)
Continuity mistake: When the hangman's axe actually hits and cuts the rope, in the very next shot the view of Jack is between the hangman's right leg and the wood brace. In that shot, we see Jack start to go down and on the right, we see Will getting up right next to the hangman. Next are close-ups of the rope coming loose, Jack falling and Norrington pushing through the crowd. Then in the next shot of Will, he is just now getting up and then lunging at the hangman to push him over. (02:06:50)
Continuity mistake: At the end when Norrington is talking to Will about it being a good sword, he holds the sword vertical. Camera cuts and it's now angled at Will. (02:07:00)
Continuity mistake: After Jack's attempted hanging, Will and Jack run with the rope and after knocking down the first three soldiers, they encounter another two at the stairs. In the first side shot, the two Marines trip over the rope empty handed and are almost at the ground. Yet, in the next front shot they are just tripping over the rope and they both have swords in their hands now. Also, Jack is higher up on the steps in the second shot. (02:07:10)
Continuity mistake: After Will rescues Jack from the noose, they soon run up steps with the rope in their hands. At the top of the steps they encounter the two soldiers and proceed to trap both soldiers around the stone column. Just as the rope goes around them, one soldier loses his hat, yet when the rope is pulled behind the column by Will and Jack, he has it on and then loses it again. (02:07:15)
Continuity mistake: As Jack bids farewell, in his extreme close-ups, when he says, "Elizabeth. It would never have worked between us, darling. I'm sorry," the soldiers behind him are lined up differently in these shots than in the wide shot just before and after, when Jack starts to walk away. (02:09:00)
Continuity mistake: After Jack tells Will, "Nice hat," he starts to run up the stairs. Next shot, Will smiles and behind him Norrington starts to run towards Jack. In the next shot, Norrington is already up the steps with his sword held high, pointed at Jack, who shouts, "Friends." Then, when the camera faces the crowd, Norrington is still lower and his sword is down. In the next close-up and wide shot, Jack's at the top of the stairs, with Norrington higher up again, sword held high, pointed at Jack. This is not because of camera angles. (02:09:20)
Continuity mistake: Anamaria has her hands on Jack's shoulders in the front shot, just as she said, "The Black Pearl is yours," and then she removes her hands. In the next successive side shot, her hands are still on Jack's shoulders, she then removes them again as she smiles at him. Jack's left sleeve is different in both shots. (02:12:15)
Continuity mistake: After the credits, Barbossa is shown lying on the treasure pile. The Aztec chest is up at the top and the lid is closed and straight. (It was also shown with the closed lid when Jack asked Will to drop him off at his ship.) Then, in the last shot, when the monkey jumps up onto the chest, the lid is on the Aztec chest, but it is partially open now. (02:22:10)
Continuity mistake: When Elizabeth walks the Black Pearl's gangplank, we see that it is long and out of swords' reach. When it is Jack's turn to jump, the crew is up on him (with swords) because Jack is at the start of the plank. Barbossa then throws the gun into the water. Then, when Jack takes off after it, his dive is taken from the end of the plank without having moved there.
Answer: The curse needs the blood of everybody who took a coin from the chest. All the other pirates have already contributed so, as the movie opens, the only blood needed is Will's, substituting for his father. During the finale of the movie, Jack takes a coin from the chest, adding himself to the curse, so his blood is now required as well as Will's.
Tailkinker ★
But I didn't see any blood on the coins, and none of the pirates cut themselves, even before Will became part of the mix.
Yes, the other pirates did cut themselves before Will came into it, off-screen. The lack of blood on the coins can simply be explained as most of it dripping to the bottom of the chest, it being washed away by storms blown into the cave, or by the fact that they didn't drop that much blood on it in the first place.
When they had Elizabeth they believed she was Bill Turner's daughter, but they all thought the curse had failed, none of them had cut themselves so it makes zero sense.
They had been collecting back the coins for years. During that time they repaid their own blood. All they needed was the last coin and the blood of Bill Turner to break the spell.
lionhead