Stuart Little (1999) (Image credit: YouTube Movies/YouTube.com screen grab)

Based on the 1945 novel, a loveable and confident mouse orphaned at birth manages to find himself a new family, a human family who first son George reminds his parents "I want a little brother not a big one," but when two mouse parents appear claming to be Stuart's parents he reluctantly leaves his new family and pet cat. We learn what family really is when the Little's fight to get Stuart back after discovering that Stuart has actually been kidnapped.