True, the Disney version is not accurate to the book, but that was by design. Walt Disney favored a cigar-shaped tube, similar to the Verne novel. Designer Harper Goff (Who designed much of Disneyland and later the sub used in Fantastic Voyage) thought it way too simple. "Once you've seen it, you've seen it!"
In the Disney version, Nemo and his crew built the Nautilus on a secret island, unlike the book where the Nautilus is built in sections by various shipyards and then assembled in secret. Goff thought Nemo would not have had access to machines to roll the metal into a cylinder, but would have used flat plates of iron riveted together. The cutting teeth for destroying wooden hulls were like the blades of a plow and could be replaced if damaged. The Disney Nautilus is a beautifully thought out design, much in keeping with Victorian technology. Most importantly, it has inspired and captivated audiences since it's it's first appearance in 1954. No other screen version of the ship has been as successful in doing so.
GREAT MODEL!-