But more importantly, Chris Buck wasn’t being serious when he laid out the connection. The full quote, which is rarely cited, ends with a tongue-in-cheek line about incorporating Buck’s 2007 Sony Animation film Surf’s Up into the same big meta-narrative headcanon. “So in my little head, Anna and Elsa’s brother is Tarzan — but on the other side of that island are surfing penguins, to tie in a non-Disney movie, Surf’s Up. That’s my fun little world,” Buck told MTV back in 2015. He did add an obligatory “fans can do whatever they want” line.
It’s one thing to create personal canon and delve into the “What if?” of established fictional worlds. That’s what fanfic is for. It’s an exercise in creativity and worldbuilding. You can say Anna and Elsa are actually Rapunzel’s cousins! Or write an AU where all the characters are mermaids! Or pair off Elsa with Jane Porter! The beauty of fanfiction is that your ideas can exist in parallel not only with canon, but also with the ideas of the rest of the fandom.
But when headcanons and Easter eggs start getting presented as unimpeachable facts, a director’s joke becomes a video thesis, and people who find out I’m a big Disney fan slide up with a “Well actually” to school me about the “truth,” it drains the joy out of imagining these connections and playing around with possibilities.