Entotsu Machi no Poupelle  

えんとつ町のプペル, Entotsu-chou no Poupelle

A city enclosed by a 4 kilometer high wall has no residents who can see beyond its boundaries due to the constant presence of smoky fumes from numerous factories within its limits. During the annual Halloween celebration, a deliveryman mistakenly drops the package he was tasked with delivering in the midst of the thick smoke. Despite his efforts to locate it, he ultimately abandons his search. The heart continues to beat at the spot where it landed amidst the smoky chimneys of the city.

Entotsu Machi no Poupelle is based on a picture book of the same name by artist and comedian Akihiro Nishino.It was nominated for the Best Animation of the Year at the 44th Japan Academy Film Prize. The film made its North American premiere at the Animation is Film Festival in Los Angeles, California on October 23, 2021.