Originally released in a 128 minutes version. Later cut to 119 minutes.
The Italian version has only a few voiceovers by Federico Fellini at the beginning of some scenes. The english-language version features an additional first person narration through most of the film giving more background information to help non-italian viewers. This voiceover starts immediately during the title credits informing the viewer that the film they're about to see doesn't have a 'story' in the traditional sense with plot and characters, but is a semi-documentary about a city.
Scenes featuring appearances by Marcello Mastroianni, Alberto Sordi as themselves (being interviewed during the "Trastevere" segment) have been removed from most non-Italian versions and from the Italian TV version. They are also missing from the R2 DVD published in Italy by Istituto Luce but have been included as additional features along with 11 other deleted scenes on the 2014 UK Masters of Cinema Blu-ray and DVD release.