Revealing mistake: When Persephone is brought to her throne, she takes a bow. Watch the fawn next to the throne; in that moment, for a few frames, one of his legs disappears. And there's an animation glitch where a white line shaped like his leg appears on his body, then flickers up for about 3 or 4 frames before his leg returns to normal. (00:01:10)
Revealing mistake: As Pluto is carrying the goddess off, the elves attempt to rush to her rescue, only to be stopped by the little demons. As they are shuffling around, several of them go up on the hill, trying to get around; however, the perspective of their size doesn't change enough in proportion to the hill and gazebo, making the elves look like they are giants when further up the hill. (00:03:04)
Revealing mistake: After Persephone is taken down to Hell, the elves gather around her wreath trying to figure it out. As the shot is slowly fading to black, suddenly some of the elves spontaneously change hat colours. On the left side, the light blue hat changes to orange and the dark blue changes to light blue. And on the right side, another light blue suddenly changes to dark blue, and a red hat changes to orange. All in a single frame. (00:03:34)
