Elsa jilted at the altar.

An army of snow monsters.

Star Kristen Bell has previously told fans that ice queen Elsa was initially conceived as a more straightforward villain.

“So when we started off, Anna and Elsa were not sisters.

They weren’t even royal.

So Anna was not a princess.

We’re then introduced to Anna, our pure-hearted heroine, and Elsa, an unrelated evil Snow Queen.

Both Elsa and the audience assume she’s the villain from the prophecy.

Elsa’s heart is then unfrozen allowing her to love again.

But for theFrozenteam, this version wasn’t nearly good enough.

“The problem was that we felt like we had seen it before,” Del Vecho says.

“It wasn’t satisfying.

We weren’t drawn in.

The characters weren’t relatable.”

For more revelations from the past four decades of entertainment, visitew.com/untoldstories.

… And what if Elsa and Anna were sisters?

“What if she’s afraid of who she is?

And afraid of hurting the ones she loves?

Now we had a character in Anna who was all about love and Elsa who was all about fear.

Chris said, ‘Does it always need to be true love’s kiss that solves that problem?

Does it always have to be the man who comes in and rescues the female?

Could it be something different?’

and that led to a different ending.

And if you don’t … we’ll have nothing.'

So thatreallyput the pressure on her to make that work.”

It’s not until the last possible moment that we realize Anna saving Elsa is the solution.

But how do you stage that in a visual way that makes sense?

To read more Untold Stories, pick up the new issue ofEntertainment Weeklyon stands Friday or right here.

“We couldn’t figure out a way, logistically, to stage it.

It’s easy in hindsight.

But John Ripa, a story artist, had an idea.

That allowed us to isolate Hans and Elsa from Anna searching for Kristoff through the mist.

He helped crack visually how we were going to depict that ending.”

Next:The Shiningproducer, co-writer explains why the ending changed