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)
Continuity mistake: The Walrus has rips on two of the fingers of his gloves he wears, but when he picks up the cigar from the beach, there are no rips on his gloves.
Continuity mistake: When the Walrus talks to the oysters underwater, the number and position of oysters changes throughout the scene. (00:16:20 - 00:17:30)
Continuity mistake: After the Mad Hatter has finished filling the pocket watch with food, the watch starts flipping about and going mad and as it spins and flips, you can see the face of the watch has disappeared. (00:47:15)
Continuity mistake: When Alice is in the tree playing with her cat in the first part of the film, the flowers she is making into a crown changes in size throughout the scene.
Continuity mistake: When Alice grows really huge in the forest, the mushroom pieces should be very very small in comparison to her, yet they are quite big. Because when we later see Alice lick the mushroom and become her normal height, the mushroom pieces are small. (00:36:30)
Continuity mistake: When Alice is up in the tree she is making a daisy-chain and her lap is empty. In a closeup though, daisies appear on her lap. (00:02:20)
Continuity mistake: When Tweedle Dum and Tweedle Dee are telling Alice the story about the walrus and the fisherman, when the walrus has the oysters in the hut and he looks at the menu it is right ways up telling you that oysters are being served. He then places it upside down on the table so the menu should be upside down writing however when the next shot comes in the menu is the right way up.
Continuity mistake: The Walrus leads 12 oysters to the 'restaurant', yet after he eats them all, there are over 20 oyster shells. (00:17:40 - 00:19:15)
Continuity mistake: When the Walrus is talking to the oysters, the mother oyster turns to look at her calendar. In a wide shot the calendar has five rows of days, yet in the closeup there are six rows. (00:16:40)
Continuity mistake: When Alice returns to the caterpillar and he says "keep your temper" he is coloured opposite to how he normally looks, with a dark blue front and light blue back. (00:34:15)
Continuity mistake: When Alice becomes huge in the forest, there is a purple bird on her head in a nest. She gathers five eggs and she is about to leave. But when Alice turns small again and the bird falls down, she gathers around eight eggs in her arms. (00:36:35)
Continuity mistake: When we see the box of cakes appear in front of Alice, it shows us Alice is sitting on an orange tile on the tiled floor. It cuts to a wider shot and she is now sitting on a black tile.
Continuity mistake: When Alice enters the White Rabbit's home, a grandfather clock is present near the door, by the foot of the stairs. But when her leg starts growing, and it goes down the stairs, the clock is nowhere to be seen.
Continuity mistake: Immediately prior to pushing the lizard down the chimney you can see teeth appear in the dodo's mouth for a few frames. (00:23:49)
Suggested correction: And how would that happen accidentally? The animators would have to deliberately draw the teeth. It was obviously done for effect. It is even done later in the scene. Most likely, the mouth wouldn't read correctly for certain words if teeth weren't visible.
Continuity mistake: In the song 'painting to roses red', after Alice sing 'Oh, pardon me, But Mister Three Why must you paint them red?' the three cards say 'Huh? Oh!'. When they say that, The three of clubs card has a three in the bottom right corn with no clubs symbol on top of the three. the three of clubs also has nothing in the top left corner. The Ace and 2 of clubs have nothing in both of there corner. A few slides later, the symbols in the corners come back.
Continuity mistake: When the Queen of Hearts spots the tree of roses dripping with red paint, on the floor by the tree is a can of paint. The can disappears when the Queen rips the tree out of the ground. (00:58:20)
Continuity mistake: At the mad tea party Alice is sitting between the Mad Hatter and the March Hare, but when the March Hare bonks the Mad Hatter on the head with a hammer Alice is sitting next to the Hare who is now sitting next to the Hatter.
Continuity mistake: When being a giant inside the house, Alice extends her arms and they're quite short. A couple of shots later she remains the same size but her arms are now 5 times longer to allow for her to open the windows on the front. This has nothing to do with the magical cookies.
Continuity mistake: When Alice becomes a giant she slams her right foot on the door. A shot later she is lifting her left foot.