The Rugrats Movie (1998)
Tommy faces responsiblity when Dil, his new baby brother is born. As with all newborns, the child becomes a bane to Tommy and the rest of his gang. Even Phil and Lil don't like them. So they decide to return Dil to where he came from, the hospital. But they get lost along the way, REALLY lost, and get into even more trouble with a circus. Can they find their way home and can Tommy and Dil just get along?