Continuity mistake: In the beginning scenes, where Milo Thatch is practicing his proposal, he slides over (face forward, chest against the board) a chalk drawing of a map detailing the location of Atlantis. When he realises he wiped off the drawing, and sees it on his clothes, he stands in front of the blank part of the chalkboard, "filling in" the space with the map that rubbed off on his shirt - the only problem is, that the image should have rubbed off backwards as he was facing the board when it transferred to his clothes. He could not simply stand in the place of the missing map face forward and have it read properly.
Other mistake: When Milo is practising his speech, he jumps over the blackboard to answer the phone. The top of the blackboard rests on the desk, but when he slides back over, it swings all the way round . If it hit the desk one way, it would have hit the desk swinging the other way round.
Add timejulie sheridan
Trivia: During the sequence with the explorers' huge submarine submerging, one of the computerized "extras" can be seen waving at the camera. (He is seen through the lower window for only a second or two; use frame advance to view it or listen to the Visual Commentary on the DVD for specifics).
Trivia: Similar to how "The Lion King" was accused of stealing material from "Kimba: The White Lion", this movie also has ties to another Japanese program of the same nature. Have a read about "Nadia - The secret of blue water" and you will see similarities between the sets, character designs and plots. Here is one link, there are many more out there about it:http://www.thesecretofbluewater.com/atlantis-i.htm
Trivia: Originally, the beginning scene was different. It showed a group of vikings who were looking for Atlantis being attacked by the Leviathan. The makers thought it didn't fit in very well with the story once the characters got to Atlantis, so it was deleted and replaced by the scene of Atlantis being drowned.