Italian Neorealism and the films made during that period was one of the influential (for example french new wave) period of cinema in terms of the look that cinema could have to the storytelling and the way it is set. Using non professional actors, stories about poor and working class and filming in location are some of the particular characteristics of Italian Neorealism.
Films such as Umberto D (1952), Bicycle Thieves (1948) by Vittorio De Sica and Rome, Open City (1945) by Roberto Rossellini etc. are good examples of that 10 to 15 years of film making. Coming from everyday life events and being a postwar cinema Italian Neorealism has even influenced the International Art Cinema in some ways later on.