It's been in development since 2009, a long time even for animation, and though LeFauve has sole
screenplay credit, the fact that she shares story
credit with four other writers — Sohn, Erik Benson, Kelsey Mann and Bob Peterson (who also has an original concept and development
credit) points up how many
cooks were involved in this tasty broth.
The
screenplay, from
credited writers Keith Dorrington, Eric Johnson, Scott Silver and Paul Tamasy, clearly bears the scars of extended development with a lot of
cooks in the kitchen, so it's rather incredible that it came out as complete and organic as it did (though plenty of that
credit is owed to the film's director).