Disney had been trying to adapt "The Snow Queen" for more than 70 years.
Kristen Bell helped give Anna a less standard "princess personality."
Idina Menzel thinks of her voice as a superpower (and rightly so).
When Menzel joined the cast, Elsa had blue, spiky hair and a coat made of living weasels.
The movie has a hard-to-spot Donny Osmond reference.
"Let It Go" changed the entire creative direction of the film.
"Let It Go" has been recorded in 41 different languages.
"Do You Want to Build a Snowman?" almost didn't make the cut.
Arendelle is Norway, essentially.
The design of Elsa's ice castle isn't random.
The guy who voiced Oaken is directing the next Disney animated film.
And finally, there's more Frozen coming.
