Corrected entry: 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.
Corrected entry: 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.
Corrected entry: Although Peter is right handed, he wears his scabbard on his right hip. It's extremely dangerous to draw from the same side as your stronger hand, even with a fairly short knife. Strangely, the only time we actually see him draw his knife, it has swapped to his left hip and he draws it across his body correctly.
Corrected entry: When Wendy walks the plank, she is some distance from the water. Yet a few minutes afterwards, when Captain Hook throws Starkey overboard, Starkey hits the water quicker than Wendy would have, and the splash can be seen over the side of the boat, whereas with Wendy, no splash would have been visible.
Corrected entry: From Peter's first entrance on the rooftop till about halfway through the nursery scene, his individual teeth are visible in closeup facial shots. But starting at about the line "But that would mean no more stories.", he's no longer drawn with individual teeth - -just an expanse of white when he opens his mouth, giving him a much less threatening appearance. Hard to believe that it was intentional. A change of artists, maybe?
Corrected entry: When we first see the pirates, they're throwing knives at the 'Cap'n' drawing on the door. You can see two knives already in there, then you see two people throw knives in the door, but when you see the door again there are only three.