Alice in Wonderland (2010)

Continuity: When Alice leaves to think over Hamish's proposal and chases after the White Rabbit, her shoes have become flats, but after her fall, when she stands up to check the doorknobs, her shoes have heels once again.

Continuity: Alice's necklace keeps disappearing and reappearing after falling down the rabbit hole.

Deliberate "mistake": When Alice jumps on the dog and they start running, her dress and her hand-band suddenly changed side. Probably they mirrored the image, and instead of going left as directed, it felt more accurate to go right.

When Alice walks through the little door and arrives in Underland, pay attention to the tree next to the stairs. It is the same tree as the tree of the dead in Sleepy Hollow, another Tim Burton movie.

Alice's impending battle on the "frabjous day" with a creature referred to as a "Jabberwocky" is a central plot point, and refers to Lewis Carroll's famous poem "Jabberwocky," from which other characters in the film, such as the Jubjub bird and Bandersnatch, are derived. However, the titular creature of the poem "Jabberwocky" was NOT a Jabberwocky, but a Jabberwock. For whatever reason, the writers of the film chose to call it by the [admittedly similar] title of the poem instead of the actual name of the creature. (For the full text of the poem, see http://www.jabberwocky.com/carroll/jabber/jabberwocky.html).

In the Red Queen's castle, after the Mad Hatter is arrested, you see a large mural on her wall around the doors. There you can see the Red Queen riding the Jabberwocky in the same looking armor as Alice later wears. You can also see the Pheonix from the book "Alice's Adventures In Wonderland"