Deliberate "mistake": Johnny Depp's and Orlando Bloom's stunt doubles, Tony Angelotti (Jack) and Mark Aaron Wagner (Will), not only fight each other's 'alter ego' as well as other pirates and soldiers, they also duel directly with each other in the blacksmith shop in many shots. They are also too obvious in the scenes on Isla de Muerta, and during the rescue of Jack from the gallows, as they run and fight the Marines. There are notable differences between the two Jacks and two Wills within all the shots, throughout the film.

Continuity: On the Black Pearl, just before Elizabeth spins the wheel on deck and knock's off Grapple's skeletal head, when she first approaches the wheel, it is fully wound up with rope. As she starts to spin the wheel, there are only about five lines of wound rope, next to the wheel.

Continuity: When the Black Pearl is chasing the Interceptor, we can see Will standing at the end of the bow (front) of the ship. Later in the scene, we see him coming up from below deck, where he has been the entire time. Nobody in Jack's crew resembles or is dressed like Will.

Revealing: Jack and Elizabeth are marooned on the island, and he goes down the stairs to the cache of rum. From below, he lifts his right arm up holding a bottle of rum and we see the pirate brand. It's a CG brand, and in this shot, the pirate brand is crooked and off to the side. It doesn't look the same as the close-up when Norrington lifts Jack's sleeve in Port Royal, and it's not because of camera angle. Jack's sun and sparrow tattoo isn't where it's supposed to be either. At this point in filming, this 'tattoo' on his arm is not a real tattoo, it is only applied for specific shots, and make-up didn't apply it for this shot. (This has nothing to do with Depp's real tattoo that he supposedly got later, after filming.)

Continuity: After Elizabeth's failed blood ritual, the pirates complain to Barbossa. In this shot, Bo'sun says, "And it's you who brought us..." and Mallet is standing on his own small rock. In the next wide shot, Mallet stands with his feet apart, sharing the rock with Twigg, who's closer to Koehler now. In the next shot, a close-up of Bo'sun, behind him, Mallet is standing on his own small rock again. There are other wide shots, that Mallet is seen standing on the two rocks and Twigg is in the middle of the big rock, closer to Koehler. In other close-ups, Mallet is standing on his own small rock.

Continuity: In Port Royal when Elizabeth is being taken by the pirates, Will sees her across the courtyard and she calls out, "Will!" In the first close-up as he begins to say, "Elizabeth," the crowd behind him differs greatly to the crowd seen behind him in the very next wide shot as he finishes saying, "Elizabeth," and then when Jacoby says, "Hello," in the next shot of Will. This is not due to people running around, it was simply shot at different times.

Other: When Captain Jack Sparrow is swimming up to the surface after ripping the dress off Elizabeth, he is swimming with both of his arms because he has Elizabeth draped over his shoulder. There is a considerable distance between Jack and Elizabeth. Also, when both of them are close to the surface, not only are both of Jack's arms out swimming, it can be seen that Elizabeth's double also paddles with one arm to assist in swimming to the surface. (Slow motion makes this easier to spot, but isn't vital.)

Continuity: Aboard Interceptor, Will points his sword at Jack, and Jack swings the boom that slams into Will. In the side wide shot as the boom comes toward Will, when we see Will's hands as he grasps the boom, he is not holding the sword, nor do we see it drop or see it on the deck; however, we do hear it hit the deck. In the next shot, Jack picks up Will's sword near the line and rail, where it didn't exist in the previous shot.

Continuity: There are two shots of an unconscious Mr. Brown and the area around him, when Jack and Will approach him. Just before and after Jack grabs the red hot sword out of Will's hand and tosses it, Mr. Brown is seen behind Jack. In these shots Mr. Brown's placement is different in comparison to the tools above him on the ledge. Also in this shot, the tools on the floor to his right in the earlier shots, are not in the same place either. When Will says, "I practice three hours a day so when I meet a pirate, I can kill it," the actual tools to Mr. Brown's left are different.

Revealing: Before Interceptor's explosion, in the close-up it's very apparent that it's not the real Interceptor. Some examples are, no rigging at the stern-most mast, at the railing there are no belaying pins with or without all the lines hanging from them, there are no cleats with or without lines and at least two of the swiveling mounts at the stern for the swivel cannons aren't there.

Continuity: When the medallion drops into the chest, and when Barbossa removes it, there is blood on both sides of the medallion. When Barbossa hits Elizabeth and she falls, the medallion falls near her. In this shot we do not see any blood on the medallion. Yet when Will rescues Elizabeth, she reaches for the medallion and it now has a very obvious blood stain on it.

Continuity: After cutting Elizabeth's hand, Barbossa says, "Waste not," and there's a wide back shot of the two of them, Barbossa is holding the knife in his right hand, and the edge of the blade does not have blood on it. In the very next shot, a close-up of the medallion falling from Elizabeth's hand, the edge of the blade now has blood on it. In a later shot when Barbossa looks at the blade, there is blood on both sides.

Revealing: When Barbossa looks through his telescope at Interceptor, before Jack says, "I'm having a thought..." she's a good distance away from the Pearl and all her sails are out. Then in most of the wide and close-up shots of Interceptor, some of the sails differ at the bow and stern. Sails raised in one shot, are lowered in another, then some raised again and also some are raised but blowing wildly, then in the successive shot, it's down and still. Their proximity varies throughout and there are way too many changes between shots.

Deliberate "mistake": When Will is staring at Jacoby, another pirate comes up from behind him and hits Will on the head with a solid silver candlestick. The sound it makes when hitting Will's head is a sharp clang, as if it hit another metal, not reverberation. Post production thought it sounded more dramatic and funnier than a thud.

Continuity: When Will and Jack are in the cave, Will goes to hit Jack with an oar, but in the previous shot we can see Jack look at Will and slightly move his body, then in the following shot he is completely facing Will ready for the hit.

Continuity: When the redcoats surround Jack and Will, at the end, they are around them on all sides in some shots, but there's a large gap in others. And this is before they are told to lower their arms.

Continuity: In the beginning, after the young Will is pulled on board, when Will says his name, the medallion is protruding out of his shirt. After young Elizabeth tells him, "I'm watching over you Will," in the next shot of Will, the medallion is completely hidden in his shirt, and his position differs between shots.

Deliberate "mistake": Jack wears one pair of boots throughout the movie; however, the heel has at least two discernible heights, including the ones worn in the underwater close-up. One kind is worn by Tony Angelotti (Johnny Depp's stunt double) and the others are worn by Depp. When Jack steps onto the dock from the Jolly Mon and when he's balancing himself on Will's sword at the attempted hanging, he's wearing the higher heel boots. As Jack crawls across the broken mast chasing the monkey, and when he dives off the Pearl's plank, the lower heel boots are obvious.

Audio problem: Barbossa hits Jack in the face and we 'hear' the distinct sound of Jack hitting the ground, though we don't see him actually hit the ground. We do however, see him start to go down and Barbossa yells, "Aaaah," and he starts to go after Jack. In the next shot, Barbossa, who is still yelling, "Aaaah," is behind a running Jack. If Jack did fall he could not have been up and running while Barbossa yells. At editing, they inserted the sound of Jack hitting the ground, for dramatic effect, even though visually in the next shot, we see Jack running immediately after being hit, while Barbossa yells behind him.

Continuity: In the close-up of young Elizabeth, as she sings on the bow of the ship, she's standing between two posts of the railing. Each post has rope wound around it. In the next few shots of her, the existence, the amount and the thickness of the rope on each post changes drastically.