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Supernova (2000): The Nightingale 229, art by @The_Metaprogram
Thor Ragnarok (2017): Planet Sakaar, art by Sean Hargreaves.
Alien Resurrection (1997): USM Auriga, art by Sylvain Despretz.
Star Wars (1977): Alderaan Imperial City concept art by Ralph McQuarrie, February 1975.
Yes, the idea behind Bespin's Cloud City (The Empire Strikes Back) was one of Ralph’s earliest paintings for... "A New Hope", but it was for Alderaan - then capital of the Empire.
Revenge of the Sith (2005): Venator-class Star Destroyer in the battle of Saleucami, art by Ryan Church.
Remember that George Lucas did not finish the script in 2002. The artists had carte blanche (the "blue sky" phase), apart from a few indications at the start.