Aya to Majo is based on Diana Wynne Jones' 2011 children's novel Earwig and the Witch. The film is the first full 3DCG animated feature done by Studio Ghibli. The film was set to have its worldwide premiere at the 73rd Cannes Film Festival in May 2020, but the event was canceled due to the COVID-19 pandemic. Instead, the movie premiered at the Lumière Film Festival on October 18, 2020. The film de

Aya to Majo is based on Diana Wynne Jones' 2011 children's novel Earwig and the Witch. The film is the first full 3DCG animated feature done by Studio Ghibli. The film was set to have its worldwide premiere at the 73rd Cannes Film Festival in May 2020, but the event was canceled due to the COVID-19 pandemic. Instead, the movie premiered at the Lumière Film Festival on October 18, 2020. The film debuted in Japan on NHK General TV on December 30, 2020, and in Japanese theaters on August 27, 2021. GKIDS released Aya to Majo on Blu-ray and DVD in North America on April 6, 2021. A children's cookbook inspired by the food featured in the film titled Kodomo Ryouri Ehon Jiburi no Shokutaku Aya to Majo was released by Shufunotomo on April 28, 2021.