Corrected entry: Bruce The Shark could not possibly have known that sea mines explode. To him, they'd be globes of metal bobbing about. If one of the mines in that minefield had gone off - allowing Bruce to see what a mine does - they would all have exploded. The shock wave underwater would have detonated all the mines - it's called a sympathetic or adiabatic explosion. Even if Bruce survived the experience, the minefield and wrecked submarine wouldn't have.
Corrected entry: When the whale arrives in the background its tail fin is vertical. Only fish tails are vertical, whales have horizontal tails.
Corrected entry: After Marlin's wife, Coral, gets eaten in the beginning of the film, Marlin should have changed to a female clownfish while introducing a secondary male into the anemone. This is because clownfish are born hermaphrodites, but children watching this movie might get a little confused.
Corrected entry: Jacques the cleaner shrimp is in a lot of trouble. He is sharing an aquarium with Bloat, a long-spined porcupine fish. Shrimp and other crustaceans are their favourite food.
Corrected entry: When Nemo first finds himself in the fish tank, the starfish tries to report the dentist's actions but her voice is muffled by the glass pane. She has to pull away to talk. However, when the other fish watch the dentist, the starfish is talking perfectly normally and not muffled, even though she's pressed up against the glass again. (00:27:25)
Corrected entry: After the Jellyfish adventure, Marlin and Dori are with the turtles. Marlin swims and sees Dori is in the turtle's shell, and she says: "29...30.", and then she starts seeking for the baby turtles. Earlier (and later) in the movie, you can notice that she forgets things in a few seconds. If she has such bad memory, how did she manage to count up to 30 without forgetting that she was playing "hide and seek" with the baby turtles?
Corrected entry: All of the fish in the tank in the dentist's office come from the ocean, so it must be a saltwater tank. However Giggles, the fish that Darla killed in the picture, is a goldfish. Goldfish live in fresh water, and wouldn't be able to live in salt water.
Corrected entry: With more than 400 dead - if you count the eggs and "Coral" - this is the Disney movie with the highest body count.
Corrected entry: When Nemo is going through the plumbing pipe, he escapes through one of the air holes at the top of the pipe. But he would've been in the bottom portion of the pipe with the water, not on top with the air. Even if he did jump at one of the holes, there wouldn't have been any suction powerful enough to pull him through.