Neorealist films -- others include "Open City," "Shoeshine," "Paisan" and "Umberto D" -- were shot on real locations with available light, used nonprofessional actors and often had socially conscious themes.
David O. Selznick was so impressed with De Sica's earlier "Shoeshine" that he offered to produce "The Bicycle Thief"--provided Cary Grant star, surely not one of the legendary Hollywood producer's most inspired casting ideas, especially since Grant's attempt to go against type several years earlier in "None but the Lonely Heart" was not a success with the public.
Pauline Kael remembers going to see De Sica's first great film, "Shoeshine," in 1947, just after a lovers' quarrel that had left her in a state of despair: "I came out of the theater, tears streaming, and overheard the petulant voice of a college girl complaining to her boyfriend, 'Well I don't see what was so special about that movie.'