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One very prominent Disney fan theory is that all the movies take place in the same universe, giving the term “Disney World” a much broader meaning.

According to them, each animated classic is connected through a complex web of cameo appearances, geographical proximities and some imaginative, but occasionally realistic, narratives.

Though some of the links are a bit far-fetched, the theory gained a bit of ground when a connection between Frozen and Tarzan was recently confirmed by the highest authority on the subject, Frozen and Tarzan director Chris Buck.

According to him, Tarzan is Anna and Elsa’s younger brother.

Whoa. How?

In a recent interview with MTV, Buck said that princesses’ parents didn’t die in a shipwreck. They survived, washed up on a beach in the jungle and built a treehouse. During this time, the mother gave birth to a baby boy. The parents were then eaten by a leopard and the boy was raised by gorillas, becoming Tarzan.

Or at least this is how things worked out “in his little head.” And that’s about as good as it gets, given how difficult it is to confirm facts in a fantasy world.

He doesn’t confirm an all-unifying Disney theory, but he doesn’t deny it either.

“I say, whatever people want to believe, go for it,” Buck said. “If you want to tie them all together, then do it. That’s the spirit of Disney.”