Revealing mistake: When Alice tells the Mad Hatter how she appeared in Wonderland the hare's paw is superimposed on the teapot's handle as if the pot were flat or he was floating.
Alice in Wonderland (1951)
1 revealing mistake
Directed by: Wilfred Jackson, Clyde Geronimi, Hamilton Luske
Starring: Bill Thompson, Sterling Holloway, Ed Wynn, Kathryn Beaumont, Richard Haydn, Jerry Colonna
Genres: Adventure, Animated, Disney, Family, Fantasy, Musical
Continuity mistake: When Alice shrinks after being huge in the forest, you can see both pieces of mushroom in her hands, untouched, although she has taken a bite out of both pieces. (00:36:40)
Mad Hatter: What's the matter my dear, don't you care for tea?
Alice: Why, yes. I'm very fond of tea.
March Hare: If you don't care for tea, you could at least make polite conversation.
More questions & answers from Alice in Wonderland
Chosen answer: There is no real answer. It is intended to be left unknown. See http://www.straightdope.com/classics/a5_266.html for The Straight Dope's answer.
Guy