Other mistake: In the opening credits, Lewis Carroll is spelled incorrectly, as 'Carrol'. (00:00:30)
Other mistake: After listening to the flowers sing, Alice is standing and talking to them. Although Alice is moving her head and arms around, her shadow stays still.
Answer: Actually, the White Rabbit sees his damaged watch, says "Oh! My watch". THEN the Mad Hatter says "It was!", then the White Rabbit says that it was an unbirthday gift. So the exchange of dialogue makes sense.
CCARNI ★