The character of Marilita Loy is obviously inspired by actress Margherita Buy. Rosanna Gentili based her characterization on Buy as well as other actresses, such as Isabella Ferrari and Valeria Bruni Tedeschi.
Despite being the continuation of the events narrated in the first three seasons of the original series, the film offers a new narrative context, equally enjoyable even by neophytes of the Borisian universe
The sons of Augusto Biascica (Arturo, Francesco Totti and "the female") are interpreted by the real sons of Paolo Calabresi.