Al risveglio da una sbronza, Franco Migliacci fissa un quadro di Chagall nel quale degli omini volteggiano nel cielo blu. E così, butta giù i versi della canzone che rese Modugno celebre in tutto il mondo, "Nel blu, dipinto di blu".

Mimmo is describing the moment in which he and Franca take their relationship to another level and when he also finds the rhyme he'd been looking for in the song he'd been writing. Later, during the recording session of Vecchio frac, he finds out the censors have been at work and want him to change the lyrics.

Anna recounts the story of Tosca, an opera singer who is in love with the painter Cavaradossi. Puccini's opera was first performed in Rome in 1900.