The Baby Movie

The Baby Movie is a 3D computer-animated film distributed by 20th Century Fox Pictures and produced by 21st Century Fox Animation, also the film has been entirely animated by Sony Pictures Imageworks.

Premise
Only child of the family, named "Nathan", Nathan wishes his family to have a sibling, after his sister was born, as the result, his baby sister became the leader of all the babies around the world to ignore parents, rules, laws, orders, governments and other forbidden things by such as eating dangerous amount of junk foods, flooding all schools into a swimming pool, freeing animals from the zoo, stealing things, causing havoc and everything.