Cities experienced profound changes in the early 20th century, mainly as a result of industrialization. Along with architects and urban planners, fiction writers played a part in shedding light on some perverse or still unknown consequences of technology on society. Cinema is probably the first industrial art form and was from its beginning deeply involved in the creative portrayal of these changes. This ever-present urban imagery, rooted in concrete aspects of a changing reality and supported by existing and fictional technological systems, forms what we call urban phantasmagorias. This article develops this theoretical approach through a brief analytical review of some of the emblematic films that have anticipated shifts in our cities and lifestyle, influenced by the emerging technologies of their time, focusing on Metropolis (1927), Blade Runner (1982), Alphaville (1965), and The Matrix (1999).