Continuity mistake: After Jack opens the lid of the large chest, there is a close-up of the filled interior, which lies nearly a foot below the top edge of the large chest, with the smaller inner chest well hidden below. However, in the next shot the lid of the smaller inner chest is way up higher, actually level with the top edge of the large chest - before Jack lifts it. (01:41:20)
Continuity mistake: When Jack, Elizabeth and Norrington remove the small chest from the larger one, and when Will kneels beside them, there are letters, etc lying on the large chest's lid, which change, disappear and reappear. (01:41:20)
Continuity mistake: When Jack, Norrington and Elizabeth find the chest, the amount of flowers visible changes instantly. (01:41:20)
Continuity mistake: When watching Will, Jack, and Norrington sword fight on the beach, Elizabeth's nose and cheeks are slightly sunburned. When back on the ship, they're only tanned, and no longer burned. (01:44:30 - 01:55:20)
Continuity mistake: When Jack, Will and Norrington fight for the key, Elizabeth tries to stop them by "fainting". After she gets up after her plan has failed, Pintel and Ragetti are seen running past Elizabeth in the background with the chest. In the next shot, they run past Elizabeth again. (01:44:30)
Continuity mistake: In the scene when Captain Sparrow, Elizabeth, and Norrington dig up the chest and open it, we can see that there are documents filling the chest all the way to the top. The shot changes, and now you can see that there are fewer documents in the chest, even though they haven't started pulling them out yet. (01:45:05)
Continuity mistake: When Norrington, Jack and Will bang away at each other on the beach, in the shot facing Elizabeth as she puts her hat back on, behind her Ragetti runs ahead of Pintel (3-4 ft) as they steal the chest. Next shot, it is Pintel in the lead as they run off. (01:49:00)
Continuity mistake: During the three way fight for the key, Will uses the bell rope to grab the key from Norrington. A couple of minutes later, while they are fighting on the roof, Jack sneaks up behind them and tries to snatch it from Norrington, despite already having taken it. (01:49:00 - 01:51:00)
Suggested correction: Norrington takes it back from Will during their fight on the roof (not seen but possible), only then Jack tries to take it again.
Continuity mistake: When Jack knocks the pirate's detachable head off with the coconut, the chest drops with the lock facing the ground and the lid's two hinges facing up. However, when Jack reaches the chest, it is the lock's side actually facing up now, before he turns the chest upright - with the lock facing him. (01:50:00)
Continuity mistake: After Jack jumps from the wheel via the vine, two coconuts fall at his feet. When he looks down at them, in the close-up their positions differ. (01:50:20)
Continuity mistake: When Jack beheads the pirate, the chest lands between certain plants, but when he kneels beside the chest to unlock it, the plants differ - despite the angle of the camera. (01:50:30)
Continuity mistake: After Jack takes the heart out of the chest he hurriedly closes its lid, the locks engage, and the key's end remains in the horizontal position when Jack runs off. However, when Pintel and Ragetti grab the chest the key's circular end is now vertical - the key does not turn itself. (01:51:00)
Continuity mistake: When Jack removes the beating heart from the chest, the way the heart is positioned in his hand changes between shots - note the large arteries. (01:51:00)
Continuity mistake: When Jack beheads the pirate and then when the pirate body searches for its head as Jack unlocks the chest, the plant debris appear and disappear in Jack's hair. (01:51:10)
Continuity mistake: This occurs during and after the scene where Jack empties the sand out of the jar and puts the heart inside. After replacing most of the sand, in the later shots the amount of sand in the jar keeps changing. Later in the scene on the Black Pearl, the amount of sand changes from shot-to-shot up until the jar is dropped and breaks. (01:51:40)
Continuity mistake: On the water wheel, the characteristics (such as shape and size) and position of the hole Jack created keeps changing, once Jack is free of the wheel. (01:52:15)
Continuity mistake: When the huge water wheel rolls to the beach and falls on its side, it falls with the broken, wide, wood side of the axle facing up. However, as Will and Norrington climb out, inexplicably it's the slim side of the water wheel's axle that is now facing up. But in a following shot, it is the other way round again. (01:52:22)
Continuity mistake: When Jack is snatched up by the water wheel, as he stands in the open grave, he gets stuck in the wood blade positioned exactly between two wheel spokes. When the key falls from his neck there is a close-up of it getting caught on the nail. In the next shot, Jack is still trapped in the wheel, only this time he is stuck in the wood blade directly beside one of the wheel spokes. (01:52:30)
Continuity mistake: When the water wheel rolls away from the camera, just as Jack falls out after hitting his head, the thin part of the axle is missing on the left, though at this angle it should be seen. Both sides of the axle are intact in following shots. Note, when the wheel rolls onto the beach, before it falls over, it is shown at the very same angle as the earlier shot. (01:52:30 - 01:56:30)
Continuity mistake: When the water wheel begins to roll, with Norrington and Will atop and then snatches up Jack, its blades (buckets on the outside rim) and two sides of the axle face a specific direction as it gains speed. Now compare the following two shots, as the water wheel rolls away from the camera: When the wheel rolls, just as Jack falls out, after hitting his head on the bar. Then later on the beach, as Elizabeth watches, just as the wheel rolls and falls over in the close-up, the wheel is actually rolling in the opposite direction - just note its blades. Also note the bizarre change of its axle's wide and narrow sides. (01:52:40 - 01:56:50)
