Visible crew/equipment: At her home, in the shot facing Elizabeth just as she tries to whack Ragetti with the bed warmer he grabs hold of it and camera equipment is visible at the lower left corner of the screen. Two shots later facing Elizabeth in the same angle, as she and Ragetti hold the bed warmer the equipment is still there. (This is ONLY visible on the video version.)
Visible crew/equipment: At the Swann home, after the shot of Will nodding to the passing butler, when Governor Swann walks down the stairs as he says "Ah, Mr. Turner," a mat is visible on the foyer floor between the chair and table. The mat is also visible when Will flips the sword. However, when Governor Swann, Elizabeth and Will leave the house, the mat is gone. (This is ONLY visible on the video version.).
Visible crew/equipment: When Barbossa's crew are invading Port Royal, two pirates run past Will carrying loot. One whacks Will on the head with a silver candlestick. As Will falls backwards, the crash mat is clearly visible on the ground behind him. (This is ONLY visible on the video version.)
Visible crew/equipment: During the attack on Port Royal, after Will tosses the axe, in the shot facing Jacoby's back as the axe hits him, the blue crash mat is visible in front of him, at the bottom left corner of the screen. (This is ONLY visible on the video version.)
Visible crew/equipment: Elizabeth comes up from below deck and asks, "What's happening?" and Anamaria answers, "The Black Pearl, she's gaining on us." Anamaria is alone at the wheel at the stern of the boat. Elizabeth then steps up and leans over to get a better look at the Pearl. In the next shot, the side of Interceptor can be seen, and in the distance is the Pearl. In this shot, on deck behind the rigging we see a crew member's leg and some other hand movement, it is not Anamaria's nor Gibbs' leg. (01:21:30)
Visible crew/equipment: In the extreme close up of young Elizabeth's face, when she first sees the Black Pearl, the only things in front of her are 1) sky; 2) sea; 3) Black Pearl. Yet, in her eyes are reflected two big, round objects - filming spots or reflectors. (00:04:45)
Visible crew/equipment: When Will and the hangman go at it, there is a close-up of Jack. In that shot, when Jack turns to his left it's very apparent that under his shirt at his shoulders and back, there's an apparatus holding the actor up, in order to help him swing back and forth, and so the false noose wouldn't harm him in any way. (02:06:40)
Visible crew/equipment: After Jack rescues Elizabeth, Norrington shows up on the dock and points his sword directly at Jack. In the first shot facing Norrington, (as the sword points toward the camera, which is Jack's POV), the clear reflections of crew members are visible on the large underside of the crossguard, at the hilt of Norrington's sword, when in fact the only one who should be in the reflection is Jack, or possibly even Murtogg or Mullroy. (00:16:50)
Visible crew/equipment: When the Black Pearl fires on Port Royal, during the cannon fire in the town, one of the stuntmen shouts as he is being propelled into the air by a spring board and then lands on a vegetable cart. The spring board is perfectly visible behind a wheelbarrow and sack. This occurs just before the first shot of the chimney exploding. (This is another stuntman and spring board than the other mistake.) (00:30:20)
Visible crew/equipment: During many close-ups of Jack, Will and other characters, either two side by side reflectors or a single large reflector screen are clearly reflected in their eyes. (00:16:45)
Visible crew/equipment: After the pirate pries the gold bowl off his head Elizabeth whacks him, then she and Will stave off the other two pirates' swords as together they hold the gold bar overhead. At the start of the next shot as Barbossa and Jack duel, part of the wood plank that Geoffrey Rush and Johnny Depp stand on is visible at the bottom right of the screen. (This is ONLY visible on the video version.)
Visible crew/equipment: After stealing Interceptor, on deck Will sharpens his sword as he says, "When I was a lad...my mother raised me...I came out here looking for my father," and Jack responds, "Is that so?" In the next close-up of Will part of the camera equipment is visible at the bottom of the screen. (This is ONLY visible on the video version.)
Visible crew/equipment: As young Elizabeth holds the medallion in her hand in the close-up, the Pearl comes into focus in the distance. In this shot, behind her hand and chain, but in front of the rail and rigging, the top of the white reflector screen is visible as it comes up at the bottom of the screen. (This is ONLY visible on the video version.)
Visible crew/equipment: After Will tells Elizabeth he loves her, she sees Mr Cotton's bird, then says, "I can't breathe." In the next shot, when the camera faces Jack on the gallows, the soldier on the right of the screen steps away from the wall. Very small in the corner, at the far end of the courtyard, you can see a crew member wearing a light blue shirt and cap. (02:06:10)
Visible crew/equipment: After Will rescues Jack from the gallows they end up on the parapet surrounded by soldiers. As Will and Jack spin around facing the soldiers closing in on them, part of the camera equipment, which moves, is visible at the bottom right of the screen. (This is ONLY visible on the video version.)
Visible crew/equipment: After Barbossa is shot by Jack, Barbossa pulls apart his jacket to reveal the wound. In this close-up, behind Barbossa to his left, the blue cloth/mat is visible at the bottom of the screen lying on the treasure pile. It was obviously not there in the previous shots. (Though this is visible on the DVD, a better view is on the video.) (02:01:20)
Visible crew/equipment: Aboard Dauntless, when Will says, "Here they come," behind him the deck can be seen. Then when the grapnels are being swung over Dauntless' rail by the Marines, very taught lines inches above the deck are seen going through the balusters of the rail leading to Interceptor. The taught lines were not placed by the Marines, only the grapnels, nor were they placed by Will and Jack. As Norrington says, "Set top sails and clear..." those lines going through the balusters aren't in this shot. These lines are the 'real' lines used by the crew's marine-unit for set up of the separation of the two ships. (00:46:50)
Visible crew/equipment: After Will puts the explosive inside skeletal Jacoby he exclaims, "No fair!" before he and the two other pirates blow up. In the very next shot of Barbossa, as he duels with Jack, the edge of the large wood plank that Geoffrey Rush and Johnny Depp stand on near the pile of treasure is plainly visible at the bottom of the screen. It can also be seen on DVD 2. (This is ONLY visible on the video version.)
Visible crew/equipment: Aboard the Interceptor, as Jack asks, "Can you sail under the command of a pirate...?" at the upper right corner of the screen, the corner of the crew's white reflector screen is perfectly visible in front of the boom. (00:50:15)
Visible crew/equipment: During the battle between the Interceptor and the Black Pearl, as Jack takes Elizabeth aside and asks her where the medallion is, on the top right corner is a film crew member's hand with a watch on it. (01:29:05)
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