Your query appears to be asking about "monster e co bambina," which refers to Boo, the little girl character from the Disney-Pixar animated film "Monsters, Inc." (known as "Monster & Co." in Italian).

Boo's True Name

Boo is the nickname given to the child protagonist in Monsters, Inc., but her real name is Mary. This detail is revealed in the film through a subtle Easter egg—in one scene, the little girl draws pictures, and on one of the sheets, a name is written in crayon: Mary.

Behind the Voice

The name Mary was not chosen randomly. The character's real name matches that of her voice actress, Mary Gibbs, who voiced Boo in the original English version. At the time of recording, Mary Gibbs was only 4 years old and the daughter of Rob Gibbs, an artist working at Pixar. She was too young to follow a traditional script during the recording sessions.

The Character

In the film, Boo accidentally enters the monster world of Monstropolis through a closet door, where she encounters James P. Sullivan (Sulley) and Mike Wazowski. The monsters nickname her "Boo" after the sound she makes, and this remains her name throughout the movie, with her real name never explicitly spoken in dialogue.