Continuity mistake: After the mermaids splash Wendy with a ton of water, her hair is wet and you can tell because it is sort of hanging down and drooping. Then they cut away, then when they cut back to Wendy, her hair is perfectly dry.
Continuity mistake: When the boys and Wendy are tied up on the ship, you can see Wendy is with them. In the next two shots when you see them Wendy has disappeared, but in the next shot she's there again.
Continuity mistake: In the mermaid scene, Wendy lands on a rock barely large enough to stand on. A few moments later, when she's being splashed by the mermaids, the rock has expanded to about four times its original size, and a seashell has miraculously appeared on it.
Continuity mistake: When Tinkerbell is about to ruin Wendy's reflection, she doesn't have one. Later, when the fish is snapping at her she doesn't have one either, but even later in the movie, she has one.
Continuity mistake: At the end of the film when the "Lost Boys" man the capstan there are four bars on the capstan, however only three boys man the bars, but as the bar turns with the boys pushing it there is no empty bar.
Continuity mistake: In the beginning of the movie, when John and Michael are fighting, John has a red bandana tied around his head. When they all rush over to Nana the bandana is gone. Right after that, when he is in bed the bandana is back on him and his mother takes it off.
Continuity mistake: In the beginning scene where Mr. Darling is upset about his chalk-covered shirt, there is a tall gray design in the center, but in the next shot it's of a lake.
Continuity mistake: As Wendy is singing 'Your mother and mine' she lays Michael down. As she is laying him down, her nightgown turns white. The next time you see her, her nightgown is blue again.
Continuity mistake: In the scene where the crocodile attacks Hook at Skull Rock, there is a shot where the croc bites Hook's left foot and the shoe comes off, leaving Hook's left foot bare. In the shot with Hook wrapped around the croc's snout, the shoe is back on Hook's left foot and his right foot is bare.