Utilizing behind-the-scenes footage and interviews, it illustrates the slow and painful transformation of the original version of the film (titled Kingdom of the Sun) to the finished product, with a focus on Sting's work on the soundtrack.

Trudie Styler, a documentarian, had been allowed to film the production of Kingdom of the Sun/The Emperor's New Groove as part of the deal that originally brought her husband Sting to the project.

The naming is due to the screening room at the Disney studio in Burbank, which when originally set up had "no air conditioning, causing the animators to sweat while their rough work was being critiqued."

[1] In 1997, director Roger Allers asks British singer-songwriter Sting to help write the music to a new Disney animated feature titled Kingdom of the Sun, which is intended to be an exploration of the culture of the Incas.

After seeing the story reels of the new film, he writes a letter of protest to the producers regarding the ending, in which Emperor Kuzco still builds his theme park and waterslide despite his moral transformation.

The documentary ends with Schumacher discussing the lessons he has learned about the production process, producer Don Hahn expressing his satisfaction with how the film turned out, and Sting reflecting that the artistic constraints that were placed upon him have ultimately improved the quality of his music.

[3] After the documentary was leaked online, Amid Amidi of Cartoon Brew gave the following analysis of the film: The Sweatbox is at turns infuriating, hilarious and enlightening.

The film not only captures the tortured morphing of the Kingdom of the Sun into The Emperor’s New Groove, it also serves as an invaluable historical document about Disney’s animation operations in the late-1990s.