The term 'Ozymandias Melancholia', which is mentioned three times throughout the film, was invented by Woody Allen for his movie Stardust Memories (1980).
The film was originally titled "The Bop Decameron", before being changed to "Nero Fiddled" and eventually to "To Rome With Love". Woody Allen changed it when he realized that few people understood the title's loose reference to 'The Decameron", a medieval collection of novellas.
Roberto Benigni's first appearance in a wide American release since Pinocchio (2002), and only his second since his Academy Award winning performance in La vita è bella (1997). It is his first appearance in an American produced and directed film since Il figlio della pantera rosa (1993).
The film cast includes three Oscar winners: Woody Allen, Roberto Benigni, Penélope Cruz; and five Oscar nominees: Alec Baldwin, Judy Davis, Jesse Eisenberg, Greta Gerwig and Elliot Page.