The Belle and Sebastian franchise refers to the popular series of stories about a boy named Sébastien and his large, intelligent dog, Belle, which originated as a French television series in 1965 and has since expanded into novels, animated and live-action films, and a Scottish indie pop band that takes its name from the story. The franchise encompasses multiple adaptations across different media, including live-action films in France and animated series in Japan and Canada, all centered on the adventures of the boy and his dog.