Originally done as a live-action film back in 1995, Uchiage Hanabi, Shita kara Miru ka? Yoko kara Miru ka?, which is localized as Fireworks, Should We See It from the Side or the Bottom?, was announced for an anime adaptation back in December.
Akiyuki Shinbou is serving as the chief director with Nobuyuki Takeuchi serving as the hands-on director.
Plot Concept: Schoolchildren Norimichi, Yuusuke, and Junichi want to know if fireworks look round or flat from the side.