[AkelaA]

The original Blade Runner is a great example of a film that depicts the changing architecture of a city - while we see sweeping shots of mile high sky scrapers throughout the film, on the ground we still see the remains of historic architecture, repurposed and built over - the police station was built within Los Angeles's 1939 Union Station, Frank Lloyd Wright's 1924 Ennis House makes an appearance as Deckard's apartment, and of course the famous Bradbury Building was used as the set for the film's finale. The end result is a city that still feels like it has a history not too dissimilar then the Los Angeles of the real world, extrapolated out to 2019 based on 1980's fears of overpopulation and such.

Something it's sequel wasn't really successful with, where instead the city looks unrecognisable, with architecture that looks alien rather then anything actually realistically plausible. If it wasn't for the frequent Coca Cola and Sony product placement you could be convinced the city was Coruscant from Star Wars or something.