Continuity mistake: Throughout the movie, every hyena is drawn with three toes on each paw. But in one shot when an off-screen hyena grabs Zazu in mid-flight to place him in the "birdie boiler", it has four toes instead. Also when the hyenas chase Simba out of the Pride Lands, Banzai has four toes when he tries to grab Simba with his claws. (00:20:20)
Continuity mistake: In the scene where young Simba and Nala are singing, "I Just Can't Wait To Be King," and right before making faces at Zazu, Nala steps into the water with both front feet, but in the next shot, all her feet are firmly on dry ground.
Continuity mistake: When Simba and the animals begin to tower up on each other towards the end of the song "I Just Can't Wait To Be King", a shot shows that the red elephants are close to the bottom of the tower. The camera begins to scan upwards and the antelope are towards the top where Simba and Nala show up. When the animals all fall and quick shots show how jumbled they get, a red elephant somehow ends up falling on top of an antelope's antlers which shouldn't be possible. (00:17:50)
Revealing mistake: When Nala tells Simba that she is taking her bath, Sarabi (Simba's mother) tells him "And it's time for yours," and picks him up in her mouth. Her head was animated but not the rest of her body (which remains in a sitting position) so her neck appears to stretch a few feet to reach Simba.
Revealing mistake: In the scene where Mufasa and Simba are at the very top of Pride Rock and Mufasa is explaining the kingdom to Simba, one of the hand written sequence markers on the gel print is not removed. In the shot that zooms in on Simba just after the camera pans around them, there are two frames where the number 45 appear just to the left of Simba's tail. (00:09:15)
Continuity mistake: During the scene where little Simba and Scar are talking about how Simba is "gonna rule it all" and Scar explains about the elephant graveyard, the pads of Scar's paws change shape several times. Sometimes the pads are as they should be, other times its covered with color. (00:13:05)
Continuity mistake: When the three hyenas are chasing little Simba, Banzai, (a hyena) flies into a thorn patch. When he comes out, he is covered in thorns. Then he walks over to the edge with Shenzi, and all of the thorns are gone (the ones he didn't pull out). (00:40:20)
Other mistake: On the old Blu-ray cover of The Lion King, there are several mistakes. In the old version, Nala's face was different, as she had brown eyes instead of blue ones and had whiskers. Her head structure was also different and her eyebrows were larger. Rafiki's face is also different as well, his eyes are wide apart from each other and part of his nose is miscolored. While Simba's face is given a few addition in the new Blu-ray cover, Pumbaa had white eyes and Timon's head isn't facing to the front and didn't have dark eyelids. However, all of these mistakes were changed for the new Blu-ray cover.
Audio problem: In the scene where Sarabi gives Simba and Nala permission to go to the waterhole, Simba yells "Yeah!" and you can distinctly hear that Nala says "all right!" But it's animated so both Cubs appear to be exclaiming "Yeah!"
Continuity mistake: During the opening sequence, a group of elephants are marching towards the camera, along with a flock of blue birds. Once all of the birds have run offscreen, another suddenly runs out from behind the lead elephant's foot, even though we saw that there was no bird there a few seconds before.
Continuity mistake: When Simba is running from the trio of hyenas that Scar sent out to kill him, he's forced to stop in his tracks at the foot of a steep cliff. Down at the bottom are thorn patches, and the sun casts a shadow on their right sides. Obviously this implies that it's setting on the left hand side of the cliff - and it's visible on that horizon moments later as he tumbles down the face. Once Simba clears the bushes and heads off into exile, Banzai shouts "If you ever come back, we'll kill you!" At this point notice how Simba is chasing the sunset, but now it's in an entirely different location - opposite the cliff face. (00:38:50)