Continuity mistake: After Stitch regurgitates the cake and replaces it on the plate, when he smells the bait and hops off the chair, the plate with the slice of cake has vanished. (00:32:25)
Continuity mistake: In the Hula lesson at the beginning of the film the two men in the corner seem to be tapping ipus (gourds hollowed out and used as an implement), but when Lilo makes her comment about Pudge the fish controlling the weather it cuts to the men for a reaction and the one on the right appears to be holding a large red normal shaped ipu. (00:10:30 - 00:12:45)
Continuity mistake: When Lilo is in her bedroom, and Nani brings her up a slice of pizza, Lilo wants to tell her a story. So she sets her doll down on the bed, and it appears to be right in front of the pillow. Then the shot changes, and the doll is down past Lilo's legs, closer to the wall.
Continuity mistake: In the scene where Nani is buying Stitch, the woman says "There's a two-dollar licence fee...", on the green wall there is a big large empty space. Then when it cuts to a wideview, after the paper is stamped, a big black telephone is hanging on the prevoiusly bare wall! (00:26:15)
Continuity mistake: During the start of the "Bedtime" scene, when Lilo takes Stitch to her room for the first time, notice the nightstand beside Lilo's bed. The top drawer is closed. Stitch jumps up on Lilo's bed and she exclaims "Hey, that's mine." Look at the night stand again, the top drawer is now open.
Other mistake: The fire truck passing by Nani on the way to her destroyed house has the same license plate as the gas truck that Stitch hijacks.
Continuity mistake: In the dance school scene, the older girls are wearing some type of calf length white pants under the grass skirts. When the fight between Lilo and the red haired girl breaks out, the older girls no longer have the pants at all. (00:10:25 - 00:12:50)
Continuity mistake: In the beginning of the movie, a few seconds after Lilo attacks Myrtle, all the girls, including Myrtle, gather behind the director. Myrtle's bracelet of leaves is still on. Then when it cuts to her, Myrtle says, "Ew, she bit me." and the bracelet is gone. (00:13:10)
Continuity mistake: When Nani brings Mr. Bubbles into her home, she spots the paper on the fridge that says "Home Alone," and she runs over to hide it. In this shot you can see that the top of the fridge is empty. Then in the next shot a green towel is hanging down off the top. (00:10:55)
Answer: There are two times when this happens the first time he is holding his guns. The second time he is holding a frog.