We're just a month away from the premiere of Frozen II, and fans can't wait to see what unfolds in the sequel to the beloved Disney film. Audiences are especially hopeful that the film will finally reveal something many of us have been wondering since Frozen was released in 2013.

King Agnarr and Queen Iduna of Arendelle played a small, but critical, role in Frozen. At the beginning of the film, they hide a young Elsa away in an attempt to control her powers, putting a wedge between her and Anna. Just a few scenes into the movie, they board a ship, leaving their now-grown daughters in Arendelle. They're shipwrecked after being caught in a storm, and the crown falls to Elsa.

Now, if Frozen II remains true to Disney formula — which seems to, with few exceptions, leave its protagonists either orphaned or with one living parent — then Elsa and Anna's parents are dead. The Frozen II trailer that dropped in June, however, makes us think that things might be headed in another direction.

The trailer opens with Elsa growing into her powers, battling tidal waves. Underwater, she encounters a mythical Norse water spirit called a Nokk. Elsa and Anna then embark on a quest, urged on by the troll Grand Pabbie who delivers an ominous warning:

"Elsa. The past is not what it seems."

We also see Queen Iduna in trailer footage. Some fans have taken all of this to mean that one or both of Elsa and Anna's parents are still alive, and that one of them may have powers of their own that enabled them to survive the shipwreck. There's also speculation that the water horse was sent as a message to Elsa and Anna, to tell them that the shipwreck hadn't been fatal.

This ties into other fan theories that came out after Frozen's release. One such theory speculates that Elsa and Anna's parents might also be Tarzan's parents. While the man and woman in Tarzan don't really look like King Agnarr and Queen Iduna, Tarzan's parents did end up stranded following a shipwreck. Even Frozen's director, Chris Buck, said that he likes this theory. In Buck's imagination, King Agnarr and Queen Iduna don't die. He told MTV News that in his mind:

"They get shipwrecked, and somehow they really washed way far away from the Scandinavian waters, and they end up in the jungle. They end up building a tree house and a leopard kills them, so their baby boy is raised by gorillas."

He also added:

"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."

Another favorite fan theory connects Elsa and Anna's parents to The Little Mermaid and Tangled. Could the sunken ship we see in The Little Mermaid actually belong to King Agnarr and Queen Iduna? According to this theory, Elsa and Anna's parents were on their way to Rapunzel and Flynn's wedding when their ship crashed, leaving it for Ariel to one day explore. From there, Rapunzel and Flynn feel guilty for the deaths of Elsa and Anna's parents, leading them to attend Elsa's coronation three years later. Keep watching the video to see that this is what really happened to Elsa & Anna's parents.

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