Plot hole: There are six metal bars mounted around the circumference of the water wheel's axle. In the wheel's interior, when Jack frees himself he lands on his feet, begins to run and promptly hits his head on one of those axle bars, then falls out. Moments later, when Jack returns and runs in the wheel, he is shorter (way more than a foot) than all six spinning axle bars, which would make that previous shot impossible, however humorous it is. (01:52:40 - 01:53:55)Super Grover
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)Super Grover
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.Super Grover
Trivia: The incredibly short shot of Tortuga when it is first shown (with the man being dunked and such) was actually filmed on the Pirates of the Caribbean ride in Disneyland. While the ride was shut down for remodeling, the crew actually went there and shot the scene with a mixture of live actors and existing animatronic props. If you look closely, many of the "actors" can be seen as fake.
Trivia: The rings worn by Jack Sparrow are not mere props, but rings that Johnny Depp actually owns. After completing the first film and learning of the second and third installments, Depp actually bought several rings specifically for the Pirates films. Another one of the rings he wears is actually a replica of an antique ring he owns.