The character Rerere no Ojisan does not appear in the anime film *Tensai Bakavon ~Yomigaeru Flanders no Inu~*. The movie's storyline centers on Nello and Patrash pursuing revenge, involving confrontations with Bakabon's family, with no inclusion of Rerere no Ojisan. While documented in other adaptations like TV series and manga, the character remains absent from this specific cinematic narrative.