Fan Casting Stuart Little (2019)

Eleanor and Frederick Little are intending to adopt a new family member. They go to an orphanage where they meet an anthropomorphic mouse named Stuart. Stuart is greeted coldly by their older son George, who refuses to acknowledge him as his brother, and the family cat, Snowbell, who is disgusted at having a mouse for a "master". Stuart admits his feelings of loneliness to his adoptive parents, who ask Mrs. Keeper to search for the whereabouts of Stuart's biological parents.