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 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.
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!