About the film
The Kingdom of Dreams and Madness is a 2013 Japanese documentary film directed by Mami Sunada. The film follows the routines of those employed at Studio Ghibli, including filmmakers Hayao Miyazaki, Isao Takahata, and Toshio Suzuki as they work to release two films simultaneously, The Wind Rises and The Tale of the Princess Kaguya.
From the film's Wikipedia article (CC BY-SA 4.0).