Continuity mistake: When Alice leaves to think over Hamish's proposal and chases after the White Rabbit, the heels on her shoes change, but when she falls into the hole the heels are back once again.
Continuity mistake: Alice's necklace keeps disappearing and reappearing after falling down the rabbit hole.
Visible crew/equipment: After Alice rejects Hamish's proposal she does a bit of the Futterwacken, and when it cuts to a shot of everyone in front of the gazebo, the blue tape mark can be seen on the grass in front of Lord Ascot. It looks like there's also a yellow tape mark on the grass in front of Faith Chattaway. (01:38:15)
Chosen answer: She is proving a point that she is not going to follow the boundaries of English society, the Mad Hatter futer-wagoned, that was where she got the moves. It also showed the crowd that she wasn't wearing stockings.