Continuity: In the scene where King Triton destroys the stone statue of Prince Eric, you can clearly see that the statue's face explodes and breaks into pieces as well as the rest of the body. However, at the point a few minutes later when Arielle decides to meet the seawitch Ursula, she caresses the statue's face as a whole again.

Continuity: In the beginning when Ariel is watching the sailors dance on the ship the dog comes over and licks her face, but she wipes off the wrong cheek.

Continuity: When the wedding is taking place, the priest's cross turns upside down for one frame.

Continuity: After Eric's wedding, Ariel arrives at the ship without shoes, then she receives her voice back and just before they try to kiss, she's wearing shoes.

Continuity: When Grimsby is presenting the statue of Eric to the prince, one of the crew's shirts changes colour from white/black stripes to blue/black stripes.

Continuity: When Ariel is in the Prince's guest bedroom, the covers suddenly appear over her.

Continuity: When Sebastian is in Ariel's cavern with all her treasures, he accidentally gets his legs caught in a thimble. You can see it from the front, but when they show a shot from the back, it is gone.  In the following shot from the front, it is back on again.

Continuity: When Eric first washes up on the beach and Ariel is singing to him/stroking his face, she has no fingernails. In the next scene she does.

Continuity: Ursula's lipstick disappears from her lips right before she applies it.

Continuity: During the "Kiss the Girl" song a bunch of fish swim up underneath the boat, and the water is seen to be very deep. After the boat is knocked over however, Ariel and Eric are standing in the water which now appears to be only a few feet deep.

Continuity: When Eric first washes up on the beach and Ariel is singing to him, she looks to her left when she hears Max barking, but Max and Grim are actually coming from her right.

Continuity: When Sebastian is hiding from the chef under a lettuce leaf in the kitchen, at first he is behind a bunch of stuff on the table. In the next shot, all the stuff is gone, and he's alone on the table.

Audio problem: When Ariel's sisters are singing in the beginning of the movie the yellowish sister's mouth doesn't move when she says her name.

Factual error: After Ariel is changed into a human, she swims frantically to the surface for air, and when she comes up she does the magnificent throwing her head back and splashing water everywhere - we've all seen it. But this would mean she would have to actually tilt her head further down in the water before breaking the surface, so she could then throw it back- something that makes no sense for a person who's about to drown, and wants air as soon as possible. Can't have been a "hair in face" problem - her hair was streaming out behind her underwater, so wouldn't have been in the way if she'd broken the surface face first.

Factual error: In the end of the film when Ursula has Triton's powers, she creates an enormous whirlpool that pulls wrecked ships off the ocean's floor. Prince Eric boards one of the ships that is being swept along with the whirlpool's currents, then turns the rudder hard to steer the ship into Ursula. Not possible - in order for the rudder to change the course of a ship the vessel must be moving faster than the current.

Continuity: When Ariel is swimming back home from her treasure collecting trip at the sunken ship, she has her pink bag. Then the eels' eyes merge from watching her to Ursula's bubble globe thing Ariel doesn't have it anymore. Then when the scene switches back, she has it again.

Continuity: When Ariel is at dinner with Eric and Grimsby, her fingernails are not painted when she picks up the fork, but are painted pink when she puts it down.

Continuity: When Ursula turns King Triton into a seaweed thing, his crown is a normal crown design. When Ursula then picks it up it has turned into a tiara and stays like that for the rest of the film.

Audio problem: When Eric and Ariel swim to each other, she says, "Eric, you've got to get away from here." He replies, "No, I won't leave you," but his lips don't move. (Regardless of the reason, still a mistake.)

Continuity: When Ariel and Eric kiss during the wedding ceremony, the wedding barque is thronged with people, but when Louis the cook chases Sebastian, the deck is suddenly bare of any and every person, including the happily married couple. Quite a flash-wedding.