Continuity mistake: After being pulled toward the Rabbit's Cottage by the White Rabbit, Bill's feet change. They change back when the ladder is being set up (almost exactly 10 seconds). (00:23:09)
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.