Take a look at this video of the media facade on the former Bayer headquarters in Leverkusen, Germany. Built by ag4 media facade GmbH and GKD AG, this remarkable display has 5.6 million LEDs covering the entire 17,500 meters of the building.
(Bayer 'Media Facade' video)
If you're a true-blue sf movie buff, you should be thinking of this scene from the 1982 Ridley Scott movie Blade Runner, where advertisements (typically to entice viewers into considering a life off-world) cover the buildings. (See also the Blade Runner video clip from which this scene is taken.)
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Prairie Madness - And Space Sickness
'Space-sickness is one of the most unpleasant sensations that a human being can experience. Not all are subject to it...'
'Old People Began to Cross The Continent In Their Own Cars'
'It was a relief to enter one of the comfortable autos, whisper a direction down the tube, and just know that you would be taken to your destination in the quickest, safest, and cheapest manner.'
Starfall Manufacturing Drugs In Space
'The vast spinning sphere of Factory in the Sky loomed above and ahead of us, gleaming white against the unfathomable jet depths of surrounding space.'
The Solar Oberth Slingshot
'And if it doesn’t work,' inquired Lazarus, 'what does that make us? Sunspots?'
'If Anyone Is Watching Earth...'
'Our study of your race has convinced us that you are not fitted to leave your planet in the present state of your civilization.'